Dopamine and its impact on our daily lives

Table of contents

1. What is dopamine? 1
2. Dopamine as a neurotransmitter and hormone. 1
3. The chemical nature of dopamine. 2
4. Physiological and biological properties. 2
5. Mechanism of action. 2
6. Dopamine receptors. 2
7. Dopamine in the central nervous system.... 3
8. Dopamine in the peripheral system.... 3
9. Dopamine and its effects on other neurotransmitters 4
10. Combination of dopamine and serotonin: 4
11. A combination of dopamine and noradrenaline: 4
12. A combination of dopamine and glutamate: 4
13. A combination of dopamine and GABA: 5
14. Dopamine and cortisol 5
15. Dopamine and oxytocin. 5
16. Dopamine and endorphins. 5
17. Dopamine and acetylcholine. 6
18. Mood swings with dopamine levels. 6
19. Dopamine and the reward system. 6
20. Dopamine and the 'pleasure-enhancement' circuit. 6
21. Dopamine and the stress response. 7
22. Dopamine and the motivation system 7
23. Dopamine and the 'hedonistic treadmill'. 7
24. Dopamine and sleep. 7
25. Stimulation of dopamine receptors to modulate dopaminergic effects. 8
26. Dopaminergic response and effects. 8
27. External factors stimulating dopamine receptors. 8
28. Intrinsic factors stimulating dopamine receptors. 9
29. Synergistic effects and combined stimuli. 9
30. Dopamine reuptake inhibition. 10
31. Mechanism of dopamine reuptake inhibition. 10
32. Substances that inhibit dopamine reuptake. 10
33. Effects of dopamine reuptake inhibition. 11
34. Supplements to increase dopamine levels. 11
35. Effect of bromantan on dopamine levels. 12
36. Effect of aniracetam on dopamine levels. 13
37. Effect of teacrine on dopamine levels. 13
38. The effect of Mucuna on dopamine levels. 14
39. Testing dopamine levels - stimulating dopaminergic effects yourself! 15
40. Brain hacks to boost dopamine levels - from a neuroscientist's perspective.... 16
41. Eating favourite foods (or sweets) 16
42. Social media dopamine drain. 16
43. Cold showers. 16
44. Exposure to sunlight. 16
45. References: 16

What is dopamine?

Dopamine is a chemical that acts as both a neurotransmitter and a hormone. It plays an important role in several important bodily processes, including movement, motivation, pleasure and reward. Dopamine is part of the catecholamine family, which also includes other key chemicals such as norepinephrine (noradrenaline) and epinephrine (adrenaline). These substances are crucial in regulating various aspects of the body and brain, from mood to motor control. ⁽¹⁾

Dopamine as a neurotransmitter and hormone

1. as a neurotransmitter:

A neurotransmitter is a molecule that transmits signals between nerve cells (neurons) through synapses (gaps between neurons). Dopamine is produced in the brain and released from neurons, where it then communicates with other neurons, helping to regulate a variety of functions, from movement to emotional processing. In the brain, dopamine is mainly produced in areas such as the black matter and ventral tegmental area (VTA), areas associated with reward processing and motor control. ⁽²⁾

2. as a hormone:

Dopamine also acts as a hormone when it is released into the bloodstream by certain glands, such as the hypothalamus. It plays a role in the regulation of various bodily functions, including the control of other hormones. An important hormonal function of dopamine is the inhibition of prolactin, the hormone responsible for milk production. Thus, dopamine plays an important role in the regulation of reproductive functions such as lactation. ⁽³⁾

The chemical nature of dopamine

Chemical formula: C₈H₁₁NO₂

Dopamine belongs to the class of catecholamines, which are characterised by a benzene ring with two hydroxyl groups and an amine group (-NH₂). Dopamine is produced from the amino acid tyrosine, which is first converted to L-DOPA and then to dopamine by a series of enzymatic reactions. The enzymes tyrosine hydroxylase and aromatic L-amino acid decarboxylase are involved in this process. ⁽⁴⁾

Physiological and biological properties

Neurophysiological functions:

Dopamine plays an important role in the regulation of movement. Insufficient dopamine levels in regions such as the basal ganglia of the brain are associated with Parkinson's disease, which causes tremor, stiffness and slowed movements. Dopamine is essential for the brain's reward system. It is released in response to pleasurable stimuli, such as food or social interactions, reinforcing certain behaviours by inducing feelings of satisfaction or pleasure. Dopamine is involved in learning, memory and decision-making, especially in the context of rewards. It assists in motivational activities and learning through reinforcement. Dopamine also affects mood regulation, and disruptions in dopamine signalling have been linked to depression and bipolar affective disorder, which can result from imbalances in dopamine systems. ⁽⁵⁾

Additional biological roles:

Dopamine also affects the cardiovascular system, where it can influence heart rate and blood pressure through interactions with receptors in the body. However, this action is secondary to its role in the brain. ⁽⁶) It plays a role in the digestive system, influencing motility and appetite regulation, as well as affecting reflexes in the gut. ⁽⁷⁾

 

Mechanism of action

The mechanism of action of dopamine includes its function both as a neurotransmitter in the brain and as a hormone in the peripheral system. It exerts its action mainly by binding to dopamine receptors, which are found in the central nervous system (CNS) and various peripheral tissues. These receptors are part of a larger family of G protein-coupled receptors (GPCRs) that mediate intracellular signalling pathways when activated by dopamine. ⁽⁸⁾

Dopamine receptors

Dopamine acts on five different receptor subtypes, named D1, D2, D3, D4 and D5. These receptors can be broadly divided into two groups based on their cellular action:

1. D1-like receptors (D1 and D5):

   These receptors are mainly excitatory. When dopamine binds to D1-like receptors, it activates the enzyme adenylyl cyclase, which increases the level of cyclic AMP (cAMP) in the cell. This increase in cAMP activates protein kinase A (PKA), which in turn modulates various cellular processes such as neuronal excitability, synaptic plasticity and gene expression. In the brain, these receptors are involved in processes such as learning, memory and mood regulation. ⁽⁹⁾

2. D2-like receptors (D2, D3, D4):

   These receptors generally have an inhibitory effect. Binding of dopamine to D2-like receptors inhibits adenylyl cyclase activity, leading to a decrease in cAMP levels. This decrease in cAMP reduces PKA activity, affecting ion channel function and cell excitability. D2-like receptors are particularly important in regulating motor control, reward and cognitive function. Dysfunction of D2 receptor signalling is associated with disorders such as Parkinson's disease and schizophrenia. ⁽⁹⁾

Dopamine in the central nervous system

Dopamine has significant effects on several critical pathways in the brain. These pathways include the mesolimbic, mesocortical and nigrostriatal pathways, each of which contributes to different aspects of behaviour and function.

• Mesolimbic route:

  Dopamine released in this pathway plays a key role in the reward system. It is involved in reinforcing behaviour by providing feelings of pleasure or satisfaction, particularly in response to rewarding stimuli such as food, sex or social interactions. This pathway has been linked to addiction, as drugs can take over dopamine signalling, leading to reinforcement of drug-seeking behaviour. ⁽¹⁰⁾

• The nigrostriatal route:

  Dopamine in this pathway is essential for motor control. It is formed in the black matter and is transmitted to the striatum. Dopamine helps modulate motor circuits involved in fine motor movements and coordination. Loss of dopamine-producing neurons in this pathway leads to Parkinson's disease, in which motor symptoms such as tremor, rigidity and bradykinesia (slowness of movement) occur. ⁽¹⁰⁾

• Mesocortical pathway:

  Dopamine in the mesocortical pathway influences cognitive function, emotional regulation and executive function. It is involved in processes such as decision-making, attention and mood regulation. Dysfunction of this pathway has been linked to schizophrenia and other mood disorders in which cognitive and emotional regulation is impaired. ⁽¹¹⁾

Dopamine in the peripheral system

In addition to its central action, dopamine also plays a hormonal role in the body. In the peripheral system, dopamine acts primarily as a vasodilator. It has an effect on relaxing the smooth muscles in the blood vessels, which leads to a reduction in blood pressure. This effect is particularly important in kidney function, where dopamine helps to regulate renal blood flow, sodium excretion and overall kidney function. The role of dopamine in the cardiovascular system is more complex, as its effects may vary depending on the concentration and specific type of dopamine receptor. ⁽¹²⁾

 

Dopamine and its effects on other neurotransmitters

Dopamine, although crucial to brain function, is not the only neurotransmitter involved in mood regulation. It interacts with several other neurotransmitters, such as serotonin, norepinephrine, glutamate and GABA, exerting complex effects on mood, behaviour and cognitive function. Each of these neurotransmitters has its own role, but their interactions, especially in certain combinations, can significantly affect how we feel and behave.

The way dopamine interacts with other neurotransmitters has a direct impact on mood, emotional state and behaviour. Here are some examples of how dopamine and its combinations affect mood:

A combination of dopamine and serotonin:

Balanced dopamine and serotonin:

When dopamine and serotonin are in harmony, they promote positive mood, increased motivation and emotional wellbeing. This balance can increase feelings of pleasure without leading to overexcitement or anxiety.

Dopamine deficiency with high serotonin levels:

Low levels of dopamine combined with high levels of serotonin can result in emotional stability but lack of motivation and low energy levels. This can contribute to a state of contentment but lack of motivation or indifference. ⁽¹³⁾

A combination of dopamine and noradrenaline:

Increase in dopamine and norepinephrine levels:

When both neurotransmitters are elevated, a person can feel highly motivated, energetic and focused, with increased levels of motivation and attention. This combination is often experienced as increased productivity and focus.

Excess dopamine in combination with noradrenaline:

Excess dopamine combined with too much norepinephrine can lead to increased anxiety, impulsivity or manic behaviour, as the brain enters overactive and alert mode. ⁽¹⁴⁾

A combination of dopamine and glutamate:

Synchronisation of dopamine and glutamate:

These neurotransmitters work together to support memory and learning and maintain motivation. A healthy balance promotes effective learning and productive behaviour, as dopamine enhances motivation and glutamate enables cognitive processes.

Dopamine deficiency with glutamate dysfunction:

In cases where dopamine levels are low and glutamate is deregulated, individuals may experience cognitive impairment, memory problems or difficulty concentrating. This can contribute to symptoms of attention deficit disorder and even depression. ⁽¹⁵⁾

A combination of dopamine and GABA:

GABA-regulated dopamine:

Dopamine and GABA must work in tandem to promote a balance of action and relaxation. A healthy combination of the two creates a stable emotional state in which individuals are motivated but not overwhelmed by anxiety or hyperactivity.

High levels of dopamine and low levels of GABA:

This imbalance can result in impulsive behaviour, irritability, anxiety and overstimulation. Conversely, a lack of dopamine combined with high levels of GABA can lead to a flat, low energy mood, often associated with depression. ⁽¹⁶⁾

Dopamine and cortisol

Cortisol is the main stress hormone, released by the adrenal glands in response to stress. Dopamine and cortisol interact in complex ways. While dopamine can drive motivation and reward-seeking behaviour, cortisol can inhibit dopamine under high stress conditions. Chronic stress can lead to decreased dopamine receptor sensitivity, making it difficult for individuals to experience pleasure and motivation. For example, in chronic stress or anxiety, the interplay between elevated cortisol levels and reduced dopamine function can contribute to feelings of burnout, lack of motivation and depression. ⁽¹⁷⁾

Dopamine and oxytocin

Oxytocin, known as the 'bonding hormone', plays a key role in social bonding, trust and emotional regulation. Dopamine and oxytocin can enhance social bonds and feelings of love and attachment. Dopamine enhances the pleasure and reward of social interactions, while oxytocin encourages bonding and empathy. The combination of dopamine (associated with pleasure and reward) and oxytocin (associated with bonding and trust) can enhance emotional bonds and feelings of attachment. ⁽¹⁸⁾

Dopamine and endorphins

Endorphins are the brain's natural painkillers and are associated with feelings of euphoria and well-being, often released after exercise or in response to pleasurable activities. Endorphins and dopamine work together in the brain's reward and pleasure system. Dopamine is involved in the expectation of pleasure, while endorphins are released when pleasure is experienced. Together, they contribute to feelings of happiness and satisfaction. Exercise-induced euphoria (often referred to as the 'runner's high') is the result of the release of both dopamine and endorphins, leading to increased motivation and positive reinforcement of the activity. ⁽¹⁹⁾

Dopamine and acetylcholine

Acetylcholine is crucial for memory, learning and muscle control. It plays a large role in the brain's ability to process new information and attention. The interaction between dopamine and acetylcholine in the brain can affect cognitive function. For example, in Parkinson's disease there is a deficiency of dopamine, leading to motor and cognitive problems. One treatment for Parkinson's disease aims to balance dopamine and acetylcholine levels to improve motor function. In conditions such as Parkinson's disease, drugs that increase acetylcholine activity (such as anticholinergics) can help balance dopamine deficiency and reduce tremor or rigidity. ⁽²⁰⁾

Mood swings with dopamine levels

Mood swings are often closely linked to changes in levels of neurotransmitters such as dopamine, which plays a key role in regulating emotion, motivation and reward processing in the brain. When dopamine levels are balanced, individuals typically experience stable mood, a sense of motivation and the ability to experience pleasure. However, fluctuations in dopamine levels can lead to significant mood changes. Here is a summary of scientific information on the effects of dopamine levels on mood swings:

Dopamine and the reward system

Dopamine is a key component of the brain's reward system, which is responsible for processing pleasurable experiences and reinforcing rewarding behaviour. When dopamine is released, it triggers feelings of pleasure and satisfaction, often following activities such as eating, socialising or achieving goals. Low levels of dopamine can impede feelings of pleasure or motivation, leading to feelings of apathy, anhedonia (inability to feel pleasure) and low energy levels. On the other hand, high levels of dopamine can lead to increased pleasure and excitement, but if too much dopamine is released too quickly, it can cause over-stimulation, leading to anxiety, irritability and even impulsivity. ⁽²¹⁾

Dopamine and the "pleasure-enhancement" circuit

Dopamine plays a key role in the mesolimbic dopaminergic pathway, which is the 'reward centre' of the brain. This pathway involves key structures such as the nucleus accumbens, which helps regulate feelings of pleasure, and the prefrontal cortex, which is involved in decision-making, planning and goal-setting. When a person experiences something pleasurable (such as eating or receiving a compliment), dopamine is released into these areas, reinforcing the behaviour. The release of dopamine helps to solidify the association between the action and the positive experience, motivating the individual to seek similar rewards in the future. If dopamine levels are low or disrupted in this pathway, the reward reinforcement system is impaired, leading to difficulty experiencing joy or motivation. Conversely, too high levels of dopamine can lead to excessive pursuit of rewards, often without regard for the consequences. ⁽²¹⁾

Dopamine and the stress response

Chronic stress can significantly affect dopamine levels, leading to changes in mood regulation. High levels of cortisol (the stress hormone) can inhibit the ability of dopamine to function properly. Chronic stress or prolonged periods of high cortisol levels can desensitise dopamine receptors, making it difficult for the brain to respond to reward signals. This can lead to dopamine deficiency, contributing to symptoms such as fatigue, sadness and lack of motivation. In contrast, acute stress or a temporary increase in dopamine (observed in moments of heightened excitement or challenge) can lead to a temporary increase in mood and motivation. However, if this state persists without adequate relaxation or recovery, it can lead to burnout or emotional exhaustion. ⁽²¹⁾

Dopamine and the motivation system

Dopamine is also involved in the brain's motivational system, particularly in the prefrontal cortex and the striatum. Motivation includes not only the expectation of rewards, but also the drive to achieve goals. When dopamine levels are high, this increases the brain's drive to achieve goals, take initiative and engage in activities. This sense of motivation can lead to a positive mood as individuals feel energised and purposeful. When dopamine levels are low, individuals may have difficulty initiating action, feel unmotivated and experience mood states such as apathy or indifference. This is often observed in conditions such as depression or anxiety, where even simple tasks can seem overwhelming and challenging. ⁽²²⁾

Dopamine and the "hedonistic treadmill"

The concept of the hedonic treadmill suggests that people adapt quickly to new levels of pleasure or satisfaction, leading to a return to baseline levels of happiness after positive or negative experiences. This adaptation is partly driven by dopamine. After a positive experience or reward, dopamine levels increase but return to baseline levels relatively quickly. As a result, people may constantly seek out new sources of pleasure or reward to keep dopamine levels elevated and avoid feelings of dissatisfaction. This can cause a cycle of mood swings as individuals chase the next 'high' (dopamine release), but never fully maintain a positive mood. ⁽²³⁾

Dopamine and sleep

Dopamine levels are influenced by the body's diurnal rhythms, which regulate sleep and wakefulness cycles. Sleep deprivation can reduce the sensitivity of dopamine receptors, making it difficult to feel motivated or positive the next day. This can lead to mood disorders such as irritability or lowered mood. On the other hand, adequate rest and recovery can help maintain normal dopamine function, stabilising mood and increasing emotional resilience. ⁽²⁴⁾

 

Stimulation of dopamine receptors to modulate dopaminergic effects

Dopamine is a key neurotransmitter that influences various brain functions such as movement, mood, reward processing and cognitive function. Activation of dopamine receptors in different brain regions leads to a range of physiological and behavioural responses. External and internal factors can modulate the activity of these receptors, causing dopaminergic effects to be enhanced or attenuated.

Dopaminergic response and effects

The dopaminergic response refers to changes in behaviour and brain activity that occur following activation of dopamine receptors. These responses are essential for many functions, including:

Motor control:

Dopamine is heavily involved in motor regulation, particularly in areas such as the striatum. Dysregulation in this system can lead to disorders such as Parkinson's disease, in which a lack of dopamine causes motor disorders such as tremor, rigidity and bradykinesia.

Reward and motivation:

Dopamine is central to the brain's reward system. When dopamine receptors are activated, this triggers feelings of pleasure and reinforces behaviours that lead to rewards. This mechanism is essential for motivation, goal-directed behaviour and reinforcing activities such as eating, socialising or engaging in rewarding experiences.

Cognitive functions and attention:

Dopamine plays a key role in cognitive functions such as attention, memory and executive functions. Its dysregulation is associated with conditions such as attention deficit hyperactivity disorder (ADHD), schizophrenia and other cognitive disorders.

Mood regulation:

Dopamine is involved in mood regulation and low dopaminergic activity is associated with symptoms of depression, anhedonia (lack of pleasure) and low motivation. In contrast, increased dopaminergic activity may contribute to improved mood and well-being. ⁽²⁵⁾

External factors stimulating dopamine receptors

External factors, including drugs, substances and environmental stimuli, can significantly affect dopamine receptor activity. These external influences often lead to the release of dopamine or enhance its action, resulting in a stronger dopaminergic response:

Recreational drugs:

Substances such as cocaine and methamphetamine increase dopamine levels by blocking its reuptake or increasing its release from presynaptic neurons. Cocaine inhibits dopamine transporters, preventing dopamine reabsorption into neurons, while methamphetamine stimulates dopamine release. These drugs lead to intense euphoria and increased reward signalling, but can also cause dependence and long-term neurochemical imbalance.

Nicotine:

Nicotine stimulates the release of dopamine via nicotinic acetylcholine receptors in the brain. When nicotine binds to these receptors, it indirectly increases dopamine activity, contributing to the pleasurable and addictive properties of tobacco use.

Caffeine:

Caffeine works mainly by blocking adenosine receptors, which in turn increases the release of dopamine. This leads to increased alertness, improved mood and a temporary increase in energy and motivation.

Alcohol:

Alcohol consumption also affects dopamine levels. It can increase the release of dopamine, particularly in areas involved in reward processing such as the nucleus accumbens. This increase contributes to the pleasurable sensations associated with drinking and reinforces alcohol consumption, potentially leading to addiction ⁽²⁶⁾

Intrinsic factors stimulating dopamine receptors

In addition to external stimuli, the body's internal processes also regulate the dopaminergic system. Internal factors such as motivation, stress and hormonal fluctuations can affect the activity of dopamine receptors:

Stress response:

Acute stress can lead to the release of dopamine as part of the body's fight or flight response. While dopamine release under stress can increase alertness and concentration in the short term, chronic stress can disrupt normal dopaminergic function, potentially contributing to mood disorders, addiction or cognitive impairment. ⁽²⁷⁾

Hormonal influences:

Hormones, particularly oestrogen and testosterone, can modulate dopamine receptor activity. For example, higher levels of oestrogen are associated with increased dopamine release, so women may experience mood swings or changes in motivation during certain phases of the menstrual cycle. ⁽²⁷⁾

Synergistic effects and combined stimuli

Sometimes different external and internal factors interact to create a synergistic dopaminergic response, enhancing the effects of dopamine release. For example, combining exercise with social interactions can lead to an enhanced dopaminergic response, as both activities individually increase dopamine release. This synergistic effect is particularly beneficial for improving mood, motivation and cognitive function.

In addition, combining substances such as caffeine and nicotine can result in increased alertness and a stronger sense of reward, as both substances stimulate the release of dopamine through different mechanisms. However, repeated or excessive use of such substances can lead to dependence or addiction due to over-stimulation of the dopaminergic system. ⁽²⁸⁾

 

Dopamine reuptake inhibition

Under normal conditions, dopamine is released from presynaptic neurons into the synaptic gap, where it binds to dopamine receptors on postsynaptic neurons, producing various effects. Once dopamine has completed its signalling role, it is normally reabsorbed back into the presynaptic neuron. However, when dopamine reuptake is inhibited by certain substances or drugs, dopamine remains longer in the synaptic gap, leading to prolonged stimulation of dopamine receptors. This enhanced dopaminergic signalling can result in stronger feelings of euphoria, increased motivation, enhanced concentration and other effects depending on the brain area affected. ⁽²⁹⁾

Mechanism of dopamine reuptake inhibition

Dopamine reuptake inhibitors (DRIs) work by blocking the dopamine transporter (DAT), the protein responsible for transporting dopamine back into the presynaptic neuron. By preventing this reabsorption, dopamine remains longer at the synapse, leading to prolonged activation of dopamine receptors . This increased dopamine availability enhances the neurotransmitter's effects on mood, cognitive function and motor control.

Substances that inhibit dopamine reuptake

Several substances, both medicinal and recreational, act as dopamine reuptake inhibitors, affecting the dopaminergic system in different ways:

Cocaine:

One of the best-known dopamine reuptake inhibitors, cocaine blocks DAT, leading to a dramatic increase in dopamine levels at the synaptic gap. This results in intense feelings of euphoria, increased energy and heightened alertness. Chronic cocaine use, however, can lead to addiction and long-term disruption of dopamine signalling.

Amphetamines:

Drugs such as methamphetamine and ecstasy also inhibit dopamine reuptake, but may additionally increase dopamine release from presynaptic neurons. This dual action results in a more significant increase in dopamine levels, contributing to the stimulant effects and addictive potential of these substances.

Certain antidepressants:

Some selective serotonin-norepinephrine-dopamine reuptake inhibitors (SSNDRIs), such as bupropion, are used therapeutically to treat depression and ADHD. These drugs inhibit dopamine (and sometimes serotonin and norepinephrine) reuptake, increasing dopamine availability and improving mood, concentration and motivation.

Methylphenidate:

Commonly used to treat ADHD, methylphenidate (Ritalin) inhibits dopamine reuptake, leading to increased dopaminergic activity in areas of the brain involved in concentration, attention and behavioural control. ⁽³⁰⁾

Effects of dopamine reuptake inhibition

Dopamine reuptake inhibition can have several significant effects on the brain and behaviour:

Increased sensitivity to rewards:

Because dopamine is central to the brain's reward system, inhibition of its reuptake results in increased feelings of pleasure and reward. This is why drugs such as cocaine and amphetamine are associated with intense euphoria and have a high potential for abuse.

Increased concentration and alertness:

By increasing the availability of dopamine in areas of the brain associated with attention and executive function, reuptake inhibitors can improve concentration and alertness, which is beneficial in the treatment of conditions such as ADHD.

Improving mood:

By increasing dopaminergic activity, dopamine reuptake inhibitors can improve mood and reduce symptoms of depression. This is the basis for the use of some of these inhibitors as antidepressants. ⁽²⁹⁾

Supplements to increase dopamine levels

Several supplements are known to support the production, release or activity of dopamine receptors in the brain. These supplements may be beneficial for improving mood, motivation, cognitive function and general wellbeing, particularly in people with low dopaminergic activity, such as those experiencing depression or attention-related disorders.

L-tyrosine:

L-tyrosine is an amino acid that serves as a precursor to dopamine. It is converted into L-DOPA, which is then synthesised into dopamine. L-tyrosine supplementation can help to increase dopamine levels, especially during periods of stress, fatigue or mental tension, as it increases dopamine synthesis. ⁽³¹⁾

Rhodiola Rosea:

Rhodiola is an adaptogen that can help reduce stress and fatigue. It can increase dopamine receptor sensitivity and increase dopamine production, leading to improved mood and mental performance under stressful conditions. ⁽³²⁾

Omega-3 fatty acids:

Omega-3 fatty acids, found in fish oil and some vegetable oils, have been shown to increase dopamine receptor density and enhance dopaminergic signalling. These healthy fats support overall brain health and dopamine function. ⁽³¹⁾

Curcumin:

The active compound in turmeric, curcumin, can help increase dopamine levels by reducing inflammation and promoting the production of brain-derived neurotrophic factor (BDNF), which supports the growth of dopamine-producing neurons. ⁽³²⁾

Vitamin B6:

Vitamin B6 has been shown to play a role in the regulation of dopamine receptors. Vitamin B6 deficiency can impair dopamine receptor function, leading to mood disorders and cognitive problems. Multivitamin supplementation can help maintain healthy dopamine levels. ⁽³¹⁾

 

Effect of bromantan on dopamine levels

Bromantan is a nootropic and adaptogen with stimulant properties that is often used to increase mental performance, reduce fatigue and improve cognitive function. Originally developed in Russia to treat asthenia (a condition of physical and mental fatigue), bromantan has gained popularity as a cognitive enhancer due to its ability to affect various neurotransmitter systems, including dopamine. ⁽³³⁾

Bromantane has a unique mechanism of action. It is classified as a substance without the addictive potential or pronounced stimulant effects observed in other amphetamines. The primary effect of bromantane on dopamine levels is to increase dopamine synthesis by increasing the activity of tyrosine hydroxylase, the enzyme responsible for converting tyrosine to L-DOPA (the precursor of dopamine). This contributes to an increase in dopamine levels in the brain. Bromantan also appears to have a modulatory effect on dopamine receptors, improving receptor sensitivity without causing excessive stimulation. The dopaminergic effects of bromantan may help to improve cognitive functions such as attention, learning and memory. This is particularly beneficial for those experiencing cognitive fatigue or those who require mental clarity during high-pressure tasks. However, unlike traditional stimulants such as amphetamine or methylphenidate, bromantan does not cause the same level of nervousness or over-stimulation, making it a more subtle enhancer of cognitive function. ⁽³³⁾

One of the key benefits of bromantan is its adaptogenic properties. It not only increases dopamine levels, but also promotes balance in the nervous system. This dual effect helps to reduce stress and anxiety while enhancing mental and physical performance. Despite its ability to increase dopaminergic activity, bromantan is not considered addictive, and its use does not cause the same 'crash' or addiction associated with other stimulants. In short, bromantan increases dopamine levels through dopamine reuptake inhibition and increased synthesis, leading to improved cognitive function, mental clarity and reduced fatigue. Its effects on dopamine are more subtle than traditional stimulants and it has adaptogenic properties that help maintain a balanced dopaminergic system. ⁽³³⁾

Effect of aniracetam on dopamine levels

Aniracetam is a nootropic from the racetam family, commonly used to improve cognitive function, enhance memory and increase concentration. Although its main effects are thought to be on AMPA receptors (which are involved in synaptic plasticity and learning), aniracetam also affects dopamine levels and dopaminergic activity in the brain. It is believed that aniracetam indirectly affects dopamine levels by increasing the overall activity of the glutamatergic system, which in turn may affect dopamine signalling. Specifically, aniracetam is thought to modulate dopaminergic neurotransmission by affecting cAMP (cyclic adenosine monophosphate) levels. cAMP is a secondary messenger that plays a key role in dopamine receptor regulation and dopamine release. By increasing cAMP production, aniracetam may increase the sensitivity of dopamine receptors, making the brain more responsive to dopamine. In addition, aniracetam has been shown to increase dopamine release in certain brain regions, including the striatum, which is involved in reward processing and motor control. This may lead to an increase in motivation, mood and overall cognitive performance, especially in tasks requiring focus or mental effort. This effect may also explain why some users report improved mood and mental clarity when taking aniracetam, as dopamine is a key player in mood regulation. ⁽³⁴⁾

Aniracetam also has neuroprotective effects and may help maintain dopaminergic function over time. Some studies suggest that it may protect dopamine receptors from oxidative damage, which is particularly important for maintaining healthy dopamine signalling as we age. This neuroprotective quality may help prevent age-related cognitive decline and support long-term dopaminergic function. In terms of mood, the increase in dopamine activity caused by aniracetam may help alleviate symptoms of depression, anxiety or low motivation. By enhancing dopamine signalling, it may promote well-being and motivation, which are often impaired in conditions associated with dopaminergic dysfunction. ⁽³⁴⁾

Aniracetam, however, does not appear to over-stimulate the dopaminergic system in the way that direct dopamine reuptake inhibitors or stimulants such as amphetamine do. The effects on dopamine are generally subtle and more focused on modulating dopamine receptor sensitivity than on causing a large increase in dopamine release. Therefore, aniracetam has a mild but beneficial effect on dopamine levels by increasing dopamine release and increasing receptor sensitivity. It aids cognitive function and mood by improving dopaminergic signalling in the brain, although its main effects are on the glutamatergic system. ⁽³⁴⁾

Effect of teacrine on dopamine levels

Theacrine (also known as theacrine) is a naturally occurring alkaloid found in Kucha tea and coffee that is often used for its stimulant and nootropic effects. Although structurally similar to caffeine, theacrine has a different pharmacological profile, particularly in terms of its effects on dopamine and other neurotransmitters. Theacrine primarily affects dopamine through its ability to increase dopamine release in certain brain regions. Like caffeine, theacrine works by blocking adenosine receptors, which are involved in promoting relaxation and sleep. By antagonising these receptors, theacrine promotes wakefulness and alertness. However, theacrine does not cause the same level of jitteriness or drop in energy that caffeine can cause. ⁽³⁵⁾

One of the key ways in which theacrine affects dopamine is through dopamine D2 receptors. Research suggests that theacrine can increase dopamine release in brain areas involved in motivation and reward, such as the prefrontal cortex and striatum. This results in improved mood, concentration and cognitive performance, similar to traditional stimulants, but without the over-stimulation and risk of addiction associated with substances such as caffeine or amphetamines. Teacrine also has a prolonged effect compared to caffeine. While the effects of caffeine typically peak and fade within a few hours, Theacrine provides sustained cognitive and mood-enhancing benefits over a longer period of time, which can help maintain consistent dopamine signalling throughout the day. This prolonged effect is partly due to theacrine's effect on dopamine receptor sensitivity and its ability to gradually increase dopamine release over time. ⁽³⁵⁾

Additionally, theacrine has neuroprotective properties that may help protect dopamine-producing neurons from damage. This may be beneficial for maintaining healthy dopaminergic function, especially in people who experience cognitive fatigue or stress. The combination of increased dopamine release, long-lasting effects and mood-enhancing properties makes Theacrine a popular choice for those seeking a nootropic that supports both cognitive performance and emotional wellbeing without the risk of addiction or tolerance associated with other stimulants. Therefore, Theacrine not only increases dopamine release and receptor activity, leading to improved mood, motivation and cognitive function, but also mediates a gradual and sustained effect, making it a gentler alternative to other stimulants. ⁽³⁵⁾

Effect of Mucuna on dopamine levels

Mucuna pruriens, also known as velvet bean, is a tropical plant long used in traditional medicine for its therapeutic effects, particularly in the treatment of Parkinson's disease and sexual dysfunction. The key component of Mucuna pruriens responsible for its effect on dopamine is L-DOPA, a direct precursor of dopamine. Consequently, Mucuna pruriens is a potent natural dopamine precursor that can significantly increase dopamine levels in the brain. Mucuna pruriens is often used as a supplement to help raise dopamine levels in people with dopamine deficiency, such as those suffering from Parkinson's disease. L-DOPA from Mucuna is converted to dopamine through the action of the enzyme dopamine decarboxylase. This helps restore dopamine function in areas of the brain involved in motor control, reward and mood regulation. By increasing the availability of L-DOPA, Mucuna pruriens can help increase dopamine production in the brain, leading to improved motor control, improved mood and increased motivation. This effect is particularly important for people suffering from diseases such as Parkinson's disease, in which dopamine-producing neurons in the brain degenerate, leading to motor impairment and mood disorders. ⁽³⁶⁾

In addition to Parkinson's disease, Mucuna's dopaminergic effects may also be helpful for those experiencing depression, stress or low motivation, as dopamine plays a key role in mood regulation and reward processing. Mucuna can support mood and overall wellbeing by replenishing dopamine levels. In addition to increasing dopamine production, Mucuna has neuroprotective effects. Research suggests that it may help protect dopamine-producing neurons from oxidative stress, which can cause neuronal damage over time. This is particularly beneficial for preserving dopamine function in the brain, especially in cases of ageing or neurodegenerative diseases. ⁽³⁶⁾

Overall, Mucuna pruriens increases dopamine levels by providing a natural source of L-DOPA, which is converted to dopamine in the brain. It supports mood, cognitive and motor function, and its neuroprotective properties make it a valuable supplement for maintaining healthy dopaminergic activity. ⁽³⁶⁾

Testing dopamine levels - stimulating dopaminergic effects yourself!

Dopamine is the chemical responsible for 'feel-good' feelings in the brain, associated with motivation, reward and pleasure. Increasing dopamine levels naturally through daily activities can improve mood, concentration and motivation. Here are some simple ways to stimulate dopamine in your routine ^{(37)) ((38)}:

Set small goals for yourself:

Completing small tasks, such as ticking off more items on a to-do list, triggers the release of dopamine. Each small achievement gives a feeling of satisfaction that motivates you to keep going.

Exercise regularly:

Physical activity, whether it is walking, yoga or training, increases dopamine by stimulating its release. Exercise not only increases dopamine levels, but also releases other mood-enhancing chemicals such as serotonin and endorphins.

Eat foods that increase dopamine levels:

Foods rich in tyrosine (such as beef, eggs and beans) are essential for dopamine production. Fruits such as bananas and beetroot, and even dark chocolate, also help to increase dopamine levels.

Get a good night's sleep:

Lack of sleep can reduce the sensitivity of dopamine receptors, making it difficult to feel motivated. Aim for 7-9 hours of sleep to maintain optimal dopamine function.

Listen to music:

Your favourite songs can boost your dopamine levels, especially when they lift your spirits or engage you emotionally. Music activates the brain's reward system, giving you a quick shot of dopamine.

Social interactions:

Positive social interactions, whether with family, friends or colleagues, trigger the release of dopamine. Even acts of kindness or receiving recognition can boost mood.

Learning new things:

Novelty stimulates dopamine. Trying new activities, learning something new or changing your routine can increase dopamine levels, providing a rewarding experience. Making these activities part of your daily routine can deliberately increase dopamine production, leading to improved mood and motivation.

Brain biohacks to boost dopamine levels - from a neuroscientist's perspective

Here are some hacks for the brain that can help stimulate dopamine production, improving mood, concentration and motivation. These simple activities can easily be incorporated into your daily life:

Eating favourite foods (or sweets)

Eating something you love, such as a favourite dessert or snack, can trigger the release of dopamine. The pleasure of eating something delicious is a natural booster. The key, however, is moderation, as overindulging can lead to a later 'crash'. Often this way is overused if we do not take care of other dopamine triggers which can lead to obesity. ⁽³⁹⁾

Dopamine drain on social media

Scrolling through social media can lead to dopamine spikes, but often results in more of a 'dopamine drain' than a real increase. Constant notifications and 'likes' trigger a small release of dopamine, but over time this can lead to less meaningful satisfaction. Limit social media use to avoid feelings of exhaustion and increase the quality of online interactions. ⁽⁴⁰⁾

Cold showers

Taking a cold shower or bath in cold water is a quick way to boost dopamine. A hit of cold water increases alertness, reduces stress and has been shown to improve mood by increasing the density of dopamine receptors. The feeling of accomplishment after taking a cold shower can also provide a dopamine reward. ⁽⁴¹⁾

Exposure to sunlight

Natural sunlight helps to increase dopamine levels. Sunlight triggers the production of serotonin and dopamine, helping to improve mood and energy levels. Try to get at least 15 minutes of sunlight each day, especially in the morning, to naturally increase dopamine levels. ⁽⁴²⁾

Disclaimer

This article has been written for educational purposes and is intended to raise awareness of the substance under discussion. It is important to note that the article is about the substance in general - it is not a description of a specific product (chemical reagent). We are not suggesting the use of chemical reagents on humans - this is prohibited by law, for a product to be used for treatment it must be registered as a medicine. The information contained in the text is based on available scientific research and is not intended as medical advice or to promote self-medication. The reader should consult with a qualified health professional for all health and treatment decisions.

 

References:

1. Berke, J. D. (2018). What does dopamine mean? Nature neuroscience, 21(6), 787-793.
2. Misu, Y., & Goshima, Y. (Eds.). (2005). Neurobiology of DOPA as a neurotransmitter. CRC Press.
3. Ben-Jonathan, N. (1985). Dopamine: a prolactin-inhibiting hormone. Endocrine reviews, 6(4), 564-589.
4. Dreyer, D. R., Miller, D. J., Freeman, B. D., Paul, D. R., & Bielawski, C. W. (2012). Elucidating the structure of poly (dopamine). Langmuir, 28(15), 6428-6435.
5. Krzymowski, T., & Stefańczyk-Krzymowska, S. (2015). New facts and concept of physiological regulation of dopaminergic system function and its disorders. J Physiol Pharmacol, 66(3), 331-341.
6. Neumann, J., Hofmann, B., Dhein, S., & Gergs, U. (2023). The role of cardiac dopamine in health and disease. International Journal of Molecular Sciences, 24(5), 5042.
7. Dive, A., Foret, F., Jamart, J., Bulpa, P., & Installé, E. (2000). Effects of dopamine on gastrointestinal motility during critical illness. Intensive care medicine, 26, 901-907.
8. Liu, C., & Kaeser, P. S. (2019). Mechanisms and regulation of dopamine release. Current opinion in neuroscience, 57, 46-53.
9. Beaulieu, J. M., Espinoza, S., & Gainetdinov, R. R. (2015). Dopamine receptors-IUPHAR R eview 13. British journal of pharmacology, 172(1), 1-23.
10. Janhunen, S., & Ahtee, L. (2007). Differential nicotinic regulation of nigrostriatal and mesolimbic dopaminergic pathways: implications for drug development. Neuroscience & Biobehavioral Reviews, 31(3), 287-314.
11. Yokochi, M. (2007). Mesolimbic and mesocortical pathways in Parkinson's disease. Brain and nerve= Shinkei kenkyu no shinpo, 59(9), 943-951.
12. Amenta, F., Ricci, A., Tayebati, S. K., & Zaccheo, D. (2002). The peripheral dopaminergic system: morphological analysis, functional and clinical applications. Italian Journal of Anatomy and Embryology, 107(3), 145-167.
13. Hashemi, P., Dankoski, E. C., Lama, R., Wood, K. M., Takmakov, P., & Wightman, R. M. (2012). Dopamine and serotonin in the brain differ in their regulation and consequences. Proceedings of the National Academy of Sciences, 109(29), 11510-11515.
14. Lambert, G., Johansson, M., Ågren, H., & Friberg, P. (2000). Reduced cerebral release of norepinephrine and dopamine in treatment-resistant depressive illness: evidence in support of the catecholamine hypothesis of mood disorders. Archives of general psychiatry, 57(8), 787-793.
15. Qi, Z., Kikuchi, S., Tretter, F., & Voit, E. O. (2011). Effects of dopamine and glutamate on synaptic plasticity: a computational modeling approach for drug abuse as comorbidity in mood disorders. Pharmacopsychiatry, 44(S 01), S62-S75.
16. Narvaes, R., & Martins de Almeida, R. M. (2014). Aggressive behaviour and three neurotransmitters: dopamine, GABA and serotonin - a review of the last 10 years. Psychology & Neuroscience, 7(4), 601.
17. Boesgaard, S., Hagen, C., Andersen, A. N., Fenger, M., & Eldrup, E. (1990). Effect of dopamine, dopamine D-1 and D-2 receptor modulation on ACTH and cortisol levels in normal men and women. European Journal of Endocrinology, 122(1), 29-36.
18. Petersson, M., & Uvnäs-Moberg, K. (2024). Oxytocin and dopamine interactions - effects on behaviour in health and disease. Biomedicines, 12(11), 2440.
19. Zheng, R. (2022). Pleasure and achievement: Dopamine and endorphins. Highlights in Science, Engineering and Technology, 6, 83-89.
20. Imperato, A., Puglisi-Allegra, S., Casolini, P., & Angelucci, L. (1991). Changes in brain dopamine and acetylcholine release during and after stress are independent of the pituitary-adrenal cortex axis. Brain research, 538(1), 111-117.
21. Bressan, R. A., & Crippa, J. A. (2005). The role of dopamine in reward and pleasure behaviour - a review of data from preclinical studies. Acta Psychiatrica Scandinavica, 111, 14-21.
22. Leyton, M. (2010). The neurobiology of desire: Dopamine and the regulation of mood and motivational states in humans.
23. Heller, R. (2011). Slowing down the consumer treadmill. The Humanist, 71(4), 30.
24. Oishi, Y., & Lazarus, M. (2017). Control of sleep and wakefulness by mesolimbic dopamine systems. Neuroscience research, 118, 66-73.
25. Berridge, K. C., & Robinson, T. E. (1998). What is the role of dopamine in reward: hedonic affect, reward learning or stimulus relevance? Brain research reviews, 28(3), 309-369.
26. Docherty, J. R., & Alsufyani, H. A. (2021). Pharmacology of drugs used as stimulants. Journal of Clinical Pharmacology, 61, S53-S69.
27. Sinclair, D., Purves-Tyson, T. D., Allen, K. M., & Weickert, C. S. (2014). Effects of stress and sex hormones on dopamine neurotransmission in the adolescent brain. Psychopharmacology, 231, 1581-1599.
28. Martin-Iverson, M. T., & Yamada, N. (1992). Synergistic behavioural effects of dopamine D1 and D2 receptor agonists are determined by circadian rhythms. European journal of pharmacology, 215(1), 119-125.
29. Young, A. M., Moran, P. M., & Joseph, M. H. (2005). The role of dopamine in conditioning and latent inhibition: what, when, where and how? Neuroscience & Biobehavioral Reviews, 29(6), 963-976.
30. Ashok, A. H., Mizuno, Y., Volkow, N. D., & Howes, O. D. (2017). Association of stimulant use with dopaminergic changes in cocaine, amphetamine or methamphetamine users: a systematic review and meta-analysis. JAMA psychiatry, 74(5), 511-519.
31. D. B. F. Dopamine Brain Food by Natural Stacks: natural cognitive enhancement.
32. Vasileva, L. V., Saracheva, K. Å., Ivanovska, M. V., Petrova, A. P., Sucouglu, E., Murdjeva, M. A., & Getova-Spasova, D. P. (2017). Beneficial effect of chronic treatment with Rhodiola Rosea L. and Curcuma Longa L. extracts on immunoreactivity of animals subjected to chronic mild stress model. Folia Medica, 59(4), 443-453.
33. Tardner, P. (2024). Bromantan: why is everyone talking about this cognitive enhancer?
34. Shirane, M., & Nakamura, K. (2001). Aniracetam increases cortical dopamine and serotonin release via cholinergic and glutaminergic mechanisms in SHRSP. Brain research, 916(1-2), 211-221.
35. Kuhman, D. J. Cognitive Performance and Mood Following Ingestion of a Theacrine-Containing Dietary Supplement, Caffeine, or Placebo by...
36. Bhoite, V., & Wagh, S. (2024). Improve your mood with Mucuna pruriens. Research Journal of Pharmacognosy and Phytochemistry, 16(4), 278-281.
37. Desai, D., Patel, J., Saiyed, F., Upadhyay, H., Kariya, P., & Patel, J. (2024). Literature review on holistic well-being and dopamine fasting: an integrated approach. Cureus, 16(6).
38. Malicse, A. The best natural stimuli for beneficial brain chemistry.
39. Coccurello, R., & Maccarrone, M. (2018). Hedonistic eating and the 'delicious circle': from lipid-derived mediators to dopamine in the brain and back again. Frontiers in neuroscience, 12, 271
40. Brown, O. (2020). The social, emotional and neurological effects of intermittent disconnection from social media use. Unpublished master's thesis]. Malone University. https://www. malone. edu/files/resources/revised-final-thesis-2020. pdf..
41. Yong, K. A. C. (2024). DOPAMINE: FRIEND OR FOE. Современные иновации, (2 (45)), 9-10.
42. Tsai, H. Y., Chen, K. C., Yang, Y. K., Chen, P. S., Yeh, T. L., Chiu, N. T., & Lee, I. H. (2011). Sunshine-exposure variation of human striatal dopamine D2/D3 receptor availability in healthy volunteers. Progress in Neuro-Psychopharmacology and Biological Psychiatry, 35(1), 107-110.