James Dixon takes a look at what dopamine deficiency really is, what causes it and how it can be reversed.
Dopamine plays a central role in regulating feelings of wellness and pleasure, and our sense of reward. It is also essential for maintaining optimal focus and motivation, as well as for experiencing satisfaction and interest.
Adequate production of dopamine is necessary for peak health, as limited amounts of dopamine – or a dopamine deficiency, in other words – can lead to various physical and mental health issues.
In particular, dopamine deficiency can be ruinous to your wellbeing; physically, emotionally, and mentally.
Dopamine
Dopamine is a monoamine neurotransmitter that is made in the hypothalamus, a central grouping of nerves within the brain. Its creation runs through a few stages. First, the brain will transform the amino acid tyrosine into dopa. Dopamine is then made from this dopa.
Dopamine is not only a neurotransmitter, but also a neurohormone that works in conjunction with epinephrine and norepinephrine as one of the three main catecholamines.
All are created within the adrenal gland. Dopamine is tasked with creating feelings of pleasure, drive, reward, and gratification, and is the main hormone responsible for the feeling of accomplishment.
Dopamine plays a significant part in addiction and addictive behaviors. The brain can develop a craving for ever-growing levels of dopamine, reward, or gratification, leading to obsessions with activities such as sex, eating, gambling, winning, or increasing overall wealth. Alcohol and many illegal drugs can also cause large surges in dopamine release.
Dopamine plays a crucial role in various bodily functions such as learning, memory, focus, sleep, mood, and controlling motor skills. It can impact motivation, vascularity, heart rate, the health and function of your blood vessels (acting as something of a vasodilator in lower levels), pain processing, kidney function, focus, lactation, nausea and vomiting, and the fight-or-flight response.
Dopamine can assist in the removal of urine and excess sodium from the body, reduce insulin production in the pancreas, protect the gastrointestinal (GI) lining, decrease GI motility, and suppress lymphocyte activity in the immune system.
As you have seen, it is crucial to many aspects of our physical and mental health.
Dopamine’s impact on your mental health
Dopamine plays a crucial role in maintaining appropriate mental wellbeing. Lower dopamine output in various sections within the brain can be linked to many mental health concerns.
While the causes of mental health issues are often complex and multifaceted, dopamine levels have been linked to conditions such as schizophrenia and attention deficit hyperactivity disorder (ADHD). Excessive dopamine levels in certain parts of the brain have been linked to symptoms such as hallucinations and delusions, while low dopamine levels can lead to low attention, focus, drive, and desire.
Medications such as Ritalin work by increasing dopamine output and are commonly used to treat conditions like ADHD, there are also some nootropics that can help with ADHD in much the same way.
As mentioned earlier, addiction and addiction-like behaviors are associated with dopamine.
Drugs that are addictive, such as cocaine, primarily work by causing large, rapid surges of dopamine to be released, which activate the reward centre of the brain and create a feeling of immediate pleasure and satisfaction.
However, with recurrent drug abuse, the reward system becomes overwhelmed, its threshold raised, which leads to increased cravings and the need for higher doses to achieve the same results. Additionally, drug use can constrain the body’s natural ability to produce dopamine, leading to dependence on the drug in question to regulate mood.
Elevated levels of dopamine, whether caused by drug use or natural factors, have also been associated with increased aggression and competitiveness, as well as a reduced impulse control.
When dopamine levels are low, its absence can cause a decrease in drive and enthusiasm and is closely tied to depressive symptoms. Symptoms may include insomnia, fatigue, low mood, decreased libido, impaired sexual function, a lack of optimism, and slow speech and movement.
Low dopamine levels also play a part in neurodegenerative diseases such as Parkinson’s, which is characterized by the slow death of the nerve cells that create dopamine. This may lead to muscular spasms and stiffness.
What does dopamine deficiency really mean?
As we have seen, dopamine is a neurotransmitter and hormone that helps to carry chemical messages between nerve cells in the brain or between the brain and the other parts of the body. It plays a crucial role in various bodily functions. These include memory and learning, motivation and, reward, and muscular control and movement.
Low dopamine levels, also known as dopamine deficiency, are associated with health conditions such as Parkinson’s disease and depression, as well as an increased susceptibility to risk-taking and addiction. Dopamine is produced in specific areas of the brain, and low dopamine levels can result from injury to these areas or problems with nerve cell receptors that receive and transmit dopamine.
Several health conditions, such as Parkinson’s disease and cocaine addiction, have been linked with dopamine deficiency due to nerve cell depletion and dopamine loss in specific areas of the brain or damaged dopamine receptors and decreased output of dopamine.
As we have seen, dopamine plays a crucial role in the brain’s reward and pleasure centers. Low levels of dopamine can lead to a variety of symptoms, including a lack of motivation, fatigue, difficulty concentrating, mood swings, anxiety, anhedonia (the inability to experience pleasure from the kinds of experiences that you used to enjoy), depression, low sex drive, and sleep disturbances. In addition, low dopamine levels can cause physical symptoms such as hand tremors, poor balance, poor control, muscle cramps, muscular stiffness, and restless legs syndrome.
Cognitive changes, such as issues with your short-term memory, daily task management, and simple problem-solving, can also occur. Low dopamine levels have also been linked to symptoms of attention deficit hyperactivity disorder (ADHD), including anger and low self-esteem, forgetfulness, anxiety, heightened impulsiveness, and poor organizational skills.
Negative symptoms of schizophrenia, such as social withdrawal, reduced emotions, and anhedonia, have also been associated with low dopamine levels. GI symptoms such as chronic constipation have also been reported. The specific symptoms experienced by an individual with dopamine deficiency can vary depending on the underlying cause of the deficiency. For example, symptoms associated with Parkinson’s disease wo