There’s a postal service inside of you. A team of messengers carrying instructions through the blood to all your systems, organs, and structures. These messengers are your hormones, secreted by the many glands that make up your endocrine system. Your body is extremely sensitive to hormones, and even a slight imbalance can impact your health. That’s why this month we’re doing a four-part series on the endocrine system, it’s functions, and what you can do to help balance your hormones and live a happier, healthier life.


Hormones act as signaling molecules and are responsible for a variety of functions in the body including growth, maintaining body temperature, mood, cognitive abilities, sexual functions, metabolism, and so many more.

If the endocrine system is a postal service, the anterior pituitary gland is the postmaster. When a hormone comes in from the hypothalamus, it will either trigger the release of the hormone or block it. If the hormone signal gets through, it will then go on to act on endocrine structures, making important things happen in the body.

There are two main categories of signaling: paracrine and endocrine. Paracrine means the signal acts on nearby cells and endocrine uses the circulatory system for transport.

In medical school, students are taught the mnemonic device FLAT PEG to memorize the anterior pituitary hormones. They are:

  • FSH (follicle-stimulating hormone)- responsible for controlling women’s menstrual cycles and stimulating the growth of eggs in the ovaries. In men, FSH helps control the production of sperm.
  • LH (luteinizing hormone)- works with FSH to regulate the menstrual cycle and reproductive systems. In men, it stimulates the production of testosterone in the testes.
  • ACTH (adrenocorticotropic hormone)- aids the adrenal glands to respond appropriately to stress.
  • TSH (thyroid-stimulating hormone)- regulates the thyroid gland which is essential to growth and metabolism.
  • Prolactin- responsible for breast growth and the production of milk.
  • Endorphins- act on the opiate receptors in the brain, reducing pain and boosting pleasure.
  • GH (growth hormones)- regulates growth in children and adolescents. Also helps regulate body composition, fluids, muscle and bones, metabolism, and possibly heart function.

Hormone Binding and Regulation

All of the cells in your body are exposed to the hormones floating in your bloodstream. But not all of them are able to react. Specific cells have receptors for specific hormones to act on. These are called “target cells”. When the hormone binds to a target cell’s receptor, it causes a response inside the cell. If the endocrine system is a postal service, the receptor is the mailbox. It will only receive messages meant for that particular cell.

Nuclear receptor sites are proteins within cells that are responsible for sensing thyroid and steroid hormones. Unlike regular cell receptors, nuclear receptors are able to bind directly to DNA and affect gene expression. You can have genes for certain diseases that lie dormant until acted upon by certain factors- hormones are one of these factors.

Hormone binding sites can be upregulated or downregulated depending on what the body needs. Upregulation increases a cell’s sensitivity to a specific hormone while downregulation does the opposite, decreasing the amount of available receptors.

Upregulation and downregulation can happen naturally, or as a response to drugs. For example, during pregnancy, there is an upregulation of receptors that cause the cells in the uterus to become more sensitive to the hormone oxytocin. In the case of drugs, constant exposure to certain substances during adolescence can induce the down or upregulation of genes, manifesting addiction and other mental illnesses that may not have surfaced before due to the effects on the brain’s reward systems.

Hormonal Imbalances

The endocrine system is fragile- even a slight imbalance can have a negative effect on your overall health. Imbalances can be linked to genetic polymorphisms in your DNA, circadian rhythm dysregulation (getting poor sleep), and environmental substances that are foreign to your body.

Some common signs of a possible hormone imbalance include:

  • Unexplained weight gain
  • Constant fatigue
  • Changes in bowel movements (either decrease or increase in frequency)
  • Dry skin
  • Sensitive to temperatures
  • Frequent thirst
  • Frequent urination
  • Thinning or brittle hair
  • Decreased libido
  • Pain and stiffness in the joints

At the Institute for Human Optimization, we order a variety of hormone testing for our patients as part of the intake process. Our goal is to get the most accurate representation of a person’s health possible and then move in the direction of increased healthspan and longevity.

Endocrine system health is an underlying variable for a variety of health problems. We strive to use the least invasive procedures first with a focus on prevention, keeping hormone levels properly regulated with proactive lifestyle habits.

We live in our brains. They shape the way we see the world, the way our personalities express themselves, the way our hearts beat, and organs function. The brain tells us when we’re hungry, when we’re sad, when it’s time to stress or relax. Famous brains throughout history have been responsible for the way we view the universe, the way we view life on this planet, and countless other inventions in medicine, art, and science. In our Brain Health series, we’ve discussed the structures of the brain, the chemical signals that make it work, and how you can take steps to reduce your chances of suffering from neurodegenerative diseases as you age. In our final installment, we discuss neuronal plasticity (how your brain reorganizes itself based on what it sees, knows, and learns) and how you can stay mentally sharp throughout your life.


The human brain is constantly evolving, not just through time, but through our own lifetimes. The brain you’re born with is not the brain you end up with.

Scientists used to believe that the brain was only malleable up to a certain age. It was thought that adults had a certain number of brain cells and they weren’t very good at re-organizing themselves.

But in the early 1900s, this idea was challenged by the father of neuroscience, Santiago Ramon y Cajal. He found that neurons were capable of changing their structures even into adulthood. His claims led to decades of research and the realization that brain organization is not set in stone. It can be “re-wired”, so to speak, depending on what a person experiences throughout their life, what they concentrate on, and how they nourish their body.

This is due to neuron plasticity– the ability of the brain to re-organize and adapt to outside stimulation. When you learn a new skill, adopt a new habit, or are exposed to a life-changing event, the physical structure of your brain changes. The neurons change. Neurotransmitter behavior changes. Your brain literally changes the way it operates based on what you expect of it.

There is a fascinating study on London taxi drivers (before the use of GPS), which showed they had heightened activity in the hippocampus region of the brain compared to non-taxi drivers. The hippocampus is involved with spatial location, therefore, by these experienced taxi drivers constantly having to recall landmarks and spatial clues, they literally built up this part of their brain.

With this knowledge of neuron plasticity, it becomes clear that we have more control over our brain functions that we ever imagined. Habits are simply the ingrained behaviors we’ve cultivated and they can be changed with intention and focus.

Types of Neuronal Plasticity

For every action, there is an equal and opposite reaction. This is Newton’s third law of motion, but it also rings true in regards to neuroplasticity. Your brain organizes itself in two ways:

  • Positive, or adaptive, meaning it configures to new experiences. This process is on overdrive when you’re a child, as your brain is learning everything from scratch, even how to interpret light and sound. Neurons are firing, synchronizing with other neurons, and forming connections. Positive neuroplasticity happens when you learn a new language or create a new exercise habit. It’s what enables people to recover from strokes, brain injuries, and even depression and anxiety disorders. It’s what makes your brain resilient.
  • Negative, or maladaptive, neuronal plasticity is the opposite. The same systems that re-organize your brain to crave exercise can also create negative thought patterns and habits that wreak havoc on your life. Constantly thinking negatively about yourself creates a neuron pathway for this behavior. The more you engage in negative self-talk, the deeper that pathway runs, the neurons that “fire together, wire together” and it becomes a habit. Negative plasticity can also happen when a person retires, stops learning new skills, and settles into complacency. Because the brain is not using the same neuronal pathways, it begins to shut them down in a process known as “synaptic pruning”. It does this to be efficient and create new pathways that you’ll actually use.

Your brain doesn’t necessarily understand which habits are positive for your life and which are not. Its job is to learn from its environment and create neuron pathways to match it. The habits you choose to cultivate, whether they be hitting the gym regularly or biting your nails, literally change the way your neurons interact with each other.

Your brain accomplishes this mainly through neurotransmitters such as dopamine. When you do something you want to do, dopamine is released, making you feel good. Each time you repeat the action, dopamine gets released earlier, until just thinking about doing it causes a surge. This is what we call “motivation” and is an essential process for remapping the brain. Neurons that fire together, wire together.

Long-Term Synaptic Potentiation

Long-term potentiation (LTP) is the constant strengthening of synapses based on consistent patterns of activity. It goes beyond negative and positive neuroplasticity, creating long-lasting experience-dependent changes in the efficacy of synaptic transmission. This could be the key to remaining mentally “sharp” as you age.

Interestingly, a breakthrough study published in the Proceedings of the National Academy of Sciences in 2004 demonstrated that the simple act of thinking could cause long-term potentiation changes in the brain. 

“Learning-induced potentiation of synaptic strength is also accompanied by an increase in the threshold for further synaptic enhancements.”

Lüscher, C., & Malenka, R. C. (2012). NMDA receptor-dependent long-term potentiation and long-term depression (LTP/LTD). Cold Spring Harbor perspectives in biology4(6), a005710. https://doi.org/10.1101/cshperspect.a005710

It’s a complicated process that researchers are still trying to figure out. But essentially, the more you concentrate on doing things that are good for you, the deeper those habits are entrenched in your brain. This is why as we age, it becomes harder to change things about our lifestyles and personalities. However, neuronal plasticity is not reserved for the young. Anyone can take this knowledge and use it to hack the brain.

Your brain is always processing information, even if you’re not aware.

Can You Really “Re-wire” Your Brain?

There’s a myriad of brain supplements, apps, and how-to guides claiming to help you “re-wire” your brain- but your brain doesn’t actually have “wires”. It’s a vast array of structures, chemical reactions, and impulses that do not act independently from one another. It’s a living, evolving organ that will literally re-organize itself to meet your demands.

So what do you demand of it? Do you make your brain read and take in new information? Do you allow your brain to quiet and be in the moment? Do you load your brain with to-do lists? Do you concentrate on the things that are wrong in your life or the things you enjoy?

If you find yourself burdened with mood disorders, poor cognitive performance, or even just want to sustain mental clarity into old age, there are proactive steps you can take to align your brain with your goals.

  1. Supplement. Just like any other part of your body, your brain must have the correct fuel to work properly. At the Institute for Human Optimization, we recommend supplements with scientific data to back them up. Taking a reliable multi-vitamin to cover the basics is always a good idea. There are also supplements you can use for brain health specifically.

    One of these substances is Alpha-GPC, a natural choline compound found in the brain. It’s also a precursor for acetylcholine, a vital neurotransmitter, and has been studied for its potential for the treatment of Alzheimer’s disease and dementia.

    Choline is a nutrient that improves focus and boosts cognitive performance. It can be obtained from a diet high in whole vegetables, fruits, and whole grains, but statistically, westerners do not get enough choline from their food and should supplement if possible.
  2. Meditate. You don’t have to be a Buddhist monk to reap the benefits of meditation. While many people link this mental exercise with spirituality, there are countless studies measuring the physical benefits of sitting still and trying not to think. One study shows meditators had more blood flow in the prefrontal cortex, the part of the brain responsible for decision making and cognitive abilities. Another study found that meditation increased serotonin production, making it a possible treatment for depression and anxiety which are often a symptom of imbalanced serotonin levels. There are so many free meditation apps and videos out there, but all you really need is 20 minutes a day, a quiet room, and your breath.

  3. Keep learning. “A brain at rest tends to stay at rest”. That’s Newton again, but still relevant. Your brain needs stimuli to make neurons fire. Doing the same tasks everyday fire up the same neurons in the same patterns, leading to synaptic pruning of all the pathways you’re not using. This is why people who move to a new country often become “rusty” in their native language if they’re not speaking it often. The brain says, “I need these new neural pathways to speak this language, but these others haven’t been used in a while- let’s re-wire.”

    The good news is that by knowing this, you can consciously choose which pathways you want to keep and which ones you allow your brain to prune. You can make it a goal to learn new skills throughout your life, keeping your brain resilient and life exciting.
  4. Think positive. Your neurons fire according to your thoughts. If you think you’re in danger, adrenaline is released to help you fight or run. If you think you’re in love, dopamine and serotonin are released to make you feel happy and content. The more you think about something, the deeper you dig the pathway that repeats those thoughts.

    Therefore, it’s beneficial to use our thoughts to help our brains. Focusing on positive things, things you’re grateful for, and taking time to talk nicely to yourself help your brain wire itself to keep doing the same. Neurons that fire together, wire together. So next time you’re feeling anxious or stressed, try naming three things you’re happy about. Make those “positive feeling” neurons fire. The more you practice this, the easier it’ll get.

At the Institute for Human Optimization, we believe longevity shouldn’t be measured just by the length of life, but by the quality. Keeping your mental faculties working correctly and avoiding neurodegenerative disease is one of our key points when working with patients. Every person has their own unique relationship with their brain and our goal is to make it a positive, long-lasting one.

To discuss how we can help optimize your brain health, you can schedule a discovery call or check out the rest of our brain health series on the blog.

Your brain is complicated; even scientists don’t understand how it all works. There are physical structures, electric impulses, chemical reactions, and cellular communication systems that go far beyond any computer ever dreamed of. At the Institute for Human Optimization, we take brain health seriously and aim to educate our patients about how the brain works and how to keep it operating well into old age. In part two of our Brain Health series, we discussed neurotransmitters and how they affect your mood, focus, and overall health. This week, we’re covering what happens to the brain as we age and proactive steps you can take to decrease your risk for neural-degenerative diseases.


When you think about aging well, what does it look like? Are you able to run? Touch your toes? Move around unassisted? Do you want radiant skin? Clear eyes? A nice smile?

Lifespan and healthspan are two different discussions. You can lengthen your life span and live to be a hundred, but what’s the benefit if the last twenty years are spent in a cognitive haze?

Transneuronal degeneration is when neurons lose a degree of intracellular proteins and can no longer maintain their normal transmembrane potential. This is the pathological process that creates the cognitive decline we see in Alzheimer’s and dementia. The loss of intracellular machinery leads to neurons that are quick to be excited, and also quickly fatigued.

As we age our brains begin to shrink, especially in the frontal cortex which is the part of the brain that handles reasoning, personality, decision making, and social behavior. Memory decline is another symptom we associate with aging and may be caused by the brain attempting to compensate for other areas experiencing weakened functions.

It’s important to know that while chronological aging is as irreversible as time itself, it is possible to reverse biological age and reduce the possibility of suffering from dementia and other neurodegenerative diseases.

Promoters of Neuronal Degeneration  

Age itself is never the reason for a disease, rather, it is the snowball effect of all the variables in a person’s life that attributes to the length of their healthspan. Like any machine, the brain and body will break down from constant wear and tear without maintenance.

In the case of neuronal degeneration and the many diseases it leads to, there are a variety of factors that can accelerate the process:

  • Lack of Neuronal Stimulation– A lazy brain tends to stay a lazy brain.
  • Inflammatory ResponsesEating a diet full of inflammatory foods puts your body in a constant state of inflammation, which can lead to neuron degeneration and death.
  • Microglia ActivationMicroglial cells are your immune system’s trash collectors. They’re responsible for clearing out cellular debris and mediating immune responses in the central nervous system. If your body is in a constant state of chronic neuro-inflammation (the underlying cause of most neurodegenerative diseases), too many microglia are activated at once, leading to more inflammation and neuron death.
  • Blood Sugar Dysregulation – It’s well-documented that people with Type-2 diabetes have a higher chance of developing neurodegenerative diseases due to insulin being neuro-protective.
  • Methylation ImbalancesMethylation is the atomic process that essentially turns on and off your biological systems. It helps your metabolism, DNA production, neurotransmitter production, liver health, detoxification, and so much more. When this process becomes imbalanced, serious health problems can arise.
  • Deficiency of Nutrients– Eating a balanced diet is the best way to ward off cognitive illnesses. Many studies show “a diet that is rich in omega-3 fatty acids supports cognitive processes in humans and upregulates genes that are important for maintaining synaptic function and plasticity in rodents. In turn, diets that are high in saturated fat are becoming notorious for reducing molecular substrates that support cognitive processing and increase the risk of neurological dysfunction in both humans and animals.”

Signs of an Aging Brain

Most researchers agree your brain starts to show its first signs of degeneration around age thirty with beginning signs of cognitive decline after fifty.

The earliest signs of an aging brain are:

  • Fatigue when performing cognitive activities such as driving, reading, and learning.
  • Depression, a sign of unhealthy neuron activity or imbalanced neurotransmitters.
  • Poor digestive function as around 90% of the brain’s output is responsible for keeping the digestive system functioning properly.

Moderate signs of an aging brain are:

  • An inability to focus or concentrate.
  • Difficulty learning new tasks.
  • Chronic constipation as a result of intestinal overgrowth and digestive enzyme insufficiency.
  • Increased blood pressure, increased resting heart rate, and poor blood flow resulting from overactivity of the sympathetic nervous system.

Significant brain aging may cause:

  • The inability to work professionally due to cognitive difficulties.
  • An inability to appreciate life.
  • An inability to perceive your own neurological loss.
  • Tremors
  • Increased difficulty in finding directions.

And severe brain aging, correlated with neurological disease, may cause:

  • Uncontrolled bowel movements
  • Bowel obstruction and inability to digest food.
  • Inability to smell, taste, or develop social relationships.
  • Total dependence on family and medical staff for daily functions.

6 Steps for Preventing Neurodegeneration

Despite what you might think, aging and neurodegeneration doesn’t have to go hand in hand.

Blue zones are locations on the planet where people are living longer than everyone else and recently, a team of researchers set out to discover what they were doing right.

“In the blue zones region of Ikaria, Greece, dementia among people over 85 is rare — over 75 percent less common than it is in the United States. (About half of Americans over 85 years old show signs of Alzheimer’s disease.)”

Blue Zones. “Diet and Dementia: What Foods Increase or Decrease Alzheimer’s Risk?”

These blue zones show that with a variety of lifestyle changes (what Blue Zones’ founder calls the Power 9) aging doesn’t have to mean losing your mental faculties. With the knowledge of how your brain works and some simple tips, you can take proactive steps towards improving your own neural health and keeping a functioning mind through the years.

  1. Normalize blood sugar imbalances and promote optimal mitochondrial function. This means avoiding foods and beverages that will spike your blood sugar levels and throw off your insulin production. Stay away from sweets, sodas, and processed foods. Stick with natural, whole foods like lean meat, eggs, fruits, vegetables, and nuts.
  2. Improve Phase I and II detoxification. This is all about helping your liver do its job of removing toxins from your body. The best way to aid this process is by reducing the toxins you’re putting in so your liver isn’t overloaded. Eating organic foods, avoiding environmental toxins (like smoke), and supplementing with key nutrients all help improve Phase I and II detoxes.
  3. Optimize essential fatty acid metabolism. You’ll find most preventative medicine focused heavily on diet and exercise, and this is tip is no different. Studies show “maximal rates of fat oxidation have been shown to be reached at intensities between 59% and 64% of maximum oxygen consumption in trained individuals and between 47% and 52% of maximum oxygen consumption in a large sample of the general population.” This means steady, consistent exercise to get your heart rate up can greatly reduce the symptoms of metabolic diseases such as type 2 diabetes and obesity.
  4. Optimize glutathione production. Glutathione is an antioxidant produced in cells. Having a reduced amount can affect many health markers and even increase the risk of Parkinson’s disease. Eating plants with natural sulfur such as broccoli, bok choy, cauliflower, and legumes can boost glutathione production. Getting quality sleep also helps optimize glutathione production.
  5. Optimize gastrointestinal pathogens. There is always something growing in your stomach. Some of its helpful. some of it may be harmful. The best way to keep your gastro-flora healthy is by eating whole foods, including fermented foods such as kimchi and kombucha, or supplementing with a quality probiotic formula. For the full scoop on gut bacteria, check out our “Keeping a Healthy Microbiome” article.
  6. Optimize methylation. Methylation is the atomic process that turns on and off your biological systems. It helps your metabolism, DNA production, neurotransmitter production, liver health, detoxification, and many other mechanisms. You can optimize methylation in your own body by adding key nutrients such as folate, choline, and B vitamins into your diet.

At the Institute for Human Optimization, we believe brain aging doesn’t have to be a part of chronological aging. It all begins with you and your lifestyle choices. We strive to give our patients personalized preventative care to keep their minds sharp as they age. To discuss how we can help you on your journey to a longer healthspan, schedule a discovery call today.

Your brain is a complicated biological machine capable of running all of your body’s functions, mental abilities, and sensory perceptions simultaneously. In reality, many facets of your personality and life choices come from the chemical substances coursing through your brain called neurotransmitters. By understanding which chemicals cause which reactions, you can learn to hack your brain to enhance your mood, improve creativity, enhance focus, and even decrease your chances of having neurodegenerative diseases as you age. In this second part of our Brain Health Series (read part one here), we cover the functions of the major neurotransmitters and what you can do to help regulate them for your own well-being.


You are a walking eco-system. Your life is governed by the actions of all the organisms, structures, and mechanisms you’re made of. If your gut bacteria thrive on sugar, you’ll crave sugar. If your genetics determine you have red hair, you’ll go through life with red hair.

One of the most important mechanisms happening in your body is the delicate balance of neurotransmitters coursing through your brain. These are chemical substances that react to impulses from the nerve cells. Electrical signals are not able to jump the gap between neurons, they must be first be turned into chemical signals. Neurotransmitters are these signals, traveling to muscles, tissues, and nerves to make the right things happen at the right time.

There are two types of neurotransmitters: excitatory and inhibitory. Excitatory neurotransmitters excite the neuron. They let it know that it’s time to fire. Inhibitory are the exact opposite, they tell the neuron to relax, nothing is going on.

Understanding these mechanisms can be a powerful tool for hacking your health, especially in regards to your mood, drive, and mental capacities. Each type of neurotransmitter is responsible for a specific function in your body and by learning about them, you set yourself up to better understand your own brain and its cycles.

Serotonin

Serotonin is one of the more well-known neurotransmitters. It’s produced in the central nervous system and is responsible for anger regulation, body temperature, mood, sleep, pain modulation, and appetite.

Many people cite low serotonin levels as the main cause of depression, though this has not been clinically proven. The reason this theory for why people suffer from depression has become so popular is because of the benefits many people find from taking SSRIs.

SSRI stands for serotonin repute inhibitor, but we know them by the names pharmacological companies use, Xanax, Lexapro, Prozac, Zoloft, and Paxil. These drugs work by inhibiting serotonin uptake back into the neuron, increasing serotonin levels, and changing the way you react to emotional-laden information.

“Unlike mood, emotions are relatively short-lived, automatic responses to internal or external stimuli, and in depressed patients, emotional responses are reliably negatively biased (12). Thus, from this viewpoint, increasing serotonin activity in depressed people does not influence subjective mood directly but, rather, as a secondary consequence of positive shifts in automatic emotional responses.”

Cowen, P. J., & Browning, M. (2015). What has serotonin to do with depression?. World psychiatry : official journal of the World Psychiatric Association (WPA)14(2), 158–160. https://doi.org/10.1002/wps.20229

Serotonin is often called the “feel-good” chemical, but it does a lot more than that. Most of it is produced in your gut, helping with digestion. If you’ve ever eaten something foul, your body produced extra serotonin to speed up the digestive process and get that food through faster than usual.

Serotonin works with another neurotransmitter, dopamine, to balance your sexual urges. Too much serotonin and not enough dopamine can result in hypoactive sexual desire disorder (HSDD), meaning extremely low sex drive. This is why the use of SSRIs can cause sexual dysfunction.

You may have low serotonin levels if you experience:

  • Increased anger or aggressiveness
  • Depression
  • Obsessive-compulsive disorder (OCD)
  • Irritable bowel syndrome (IBS)
  • Tinnitus
  • Fibromyalgia
  • Bipolar disorders
  • Anxiety disorders
  • Increased anger or aggressiveness
  • Depression
  • Obsessive-compulsive disorder (OCD)
  • Irritable bowel syndrome (IBS)
  • Tinnitus
  • Fibromyalgia
  • Bipolar disorders
  • Anxiety disorders

Contrarily, you may have high levels of serotonin if you experience:

  • Shyness
  • Inferiority complex
  • Nervousness
  • Vulnerability to criticism
  • Intense fear of being disliked
  • Desire for social contact but fear about it

There are two main reasons why someone might have low serotonin: they may not be making it, or their brain isn’t using it properly. Some studies suggest that increasing vitamin D can boost serotonin levels as well as eating plenty of tryptophan-rich foods. Tryptophan is an amino acid that assists in the creation of serotonin and is found in chicken, eggs, fish, turkey, shrimp, mushrooms, spinach, raw tofu, liver, salmon, beef, lamb, soybeans, scallops and pumpkin seeds.

Seratonin can also be boosted naturally by spending at least 15 minutes in the sun, exercising, and treating yourself to a massage now and then.

Dopamine

Dopamine is serotonin’s buddy and helps regulates your daily mood. It’s also responsible for attention, learning, motivation and reward, cognition, and making sure you’re coordinated enough to get through life.

Dopamine is the “pleasure” chemical, and its main job is to make sure you feel good when you do something good for you to make sure you do it again. Some researchers even think that higher levels of dopamine gave our ancestors a social edge over other apes, propelling us quickly through the evolutionary process to where we are today.

Dopamine would have let our ancestors know they were doing something right. For example, berries contain natural sugars that boost dopamine levels. Finding a berry bush as an early human was quite a stroke of luck as berries are more calorie and nutrient-dense than other wild foods. That dopamine spike kept them coming back for more.

In modern times, dopamine is typically more feast than famine. We have engineered our environments to give us hits of that dopamine “high” as often as possible. Sugar is a major highjacker of dopamine that acts like a drug to the brain, even causing addiction. This is why it’s important to limit sugar intake and nourish good gut bacteria. Even your phone, with all its buttons, lights and sounds, releases dopamine in the brain.

You may have low levels of dopamine if you frequently experience:

  • Depression
  • Anhedonia (inability to experience pleasure
  • Social anxiety
  • Parkinson’s disease
  • Heavy menstrual cycles
  • Male secondary hypogonadism
  • Learning disorders
  • ADD
  • Chemical addictions

High levels of dopamine can cause psychosis, schizophrenia, hyper-social activity, and increased libido. Everything in your body depends on homeostasis; system balance. 

If you feel you may have low dopamine, you can try introducing wild game meat, beef, fish, oats, and dark chocolate to your diet. These contain tyrosine, an important amino acid that helps with the production of dopamine in the body.

GABA

Gamma-aminobutyric acid (GABA) is the chief inhibitory neurotransmitter of the nervous system. This means it’s an inhibitory neurotransmitter, responsible for calming excited neurons. When GABA is released, you feel relaxed and have less anxiety. It also has anti-convulsive effects, though its role in treatment for epilepsy remains unclear.

You may have a GABA imbalance if you frequently experience:

  • Anxiety
  • Insomnia
  • Depression
  • Seizure disorders
  • Panic disorders

People who have an imbalance of GABA sometimes require medication to manage their symptoms. Pharmacological drugs have been developed to act as agonists for the GABA receptor site and are classified into two main types: benzodiazepines and non-benzodiazepines.

Benzodiazepines are essentially tranquilizers. They include popular drugs such as Klonopin and Valium, which are known to carry risks of dependence, withdrawal, and negative cognitive side effects. Both benzodiazepines and non-benzodiazepines typically give users anti-anxiety and relaxing effects that temporarily “take the edge off”.

GABA is found in varieties of green, black, and oolong tea, as well as in fermented foods including yogurt, tempeh, and kimchi. Other foods that contain GABA or boost its production include whole grains (oat, barley, wheat), soy, lentils, and other beans; nuts including walnuts, almonds, and peanuts; fish including shrimp and halibut; citrus, cheese, spinach, broccoli, and rice.

Acetylcholine

Acetylcholine is the “memory chemical” and is one of the most abundant neurotransmitters in the body. It’s an excitatory neurotransmitter and is responsible for alertness, attention, learning, and short and long-term memory.  It also aids in skeletal muscle contraction to help you perform all your daily activities, from sweeping the floor to lifting weights.

Because it controls memory, people with acetylcholine imbalances often suffer from:

  • Alzheimer’s disease
  • Dementia
  • Myasthenia Gravis
  • Memory lapses
  • Calculation difficulties
  • Impaired creativity
  • Decreased arousal
  • Impaired judgement
  • Diminished comprehension

Alzheimer’s disease and dementia are the most common neurodegenerative disease experienced by the aging population. Though researchers are not completely sure what the main causes are, people who suffer from memory-loss disorders generally have lower levels of acetylcholine.

This is why it’s helpful to eat foods that impact this vital neurotransmitter, such as fatty pork, liver, fried eggs, beef, tofu, nuts, cream, milk, and fatty cheeses. These foods contain high amounts of choline, the amino acid responsible for boosting acetylcholine production in the body.

People who suffer from acetylcholine imbalances are sometimes given medications called anticholinergics. These work by blocking acetylcholine from binding to its receptors and inhibiting parasympathetic nerve functions. They are often prescribed to alleviate symptoms of Parkinson’s disease, urinary incontinence, and COPD.

Glutamate

Glutamate is the most abundant neurotransmitter in the body, present in nearly every excitatory brain function. Its job is to get neurons excited and ready to work. It’s also a metabolic precursor to GABA. Glutamate plays a vital role in synaptic plasticity—the strengthening or weakening of the signals between neurons over time. This is how your memories are formed, not by the creation of new neurons, but by strengthening the connections between them.

You may have an excess of glutamate in the brain if you experience:

  • Restlessness
  • Inability to focus
  • Hyperalgesia (amplified pain)
  • Anxiety

You may have heard of monosodium glutamate, or MSG, a chemical compound often put in commercially prepared food to make it taste better. MSG acts on glutamate receptors and because the neurotransmitter is required in almost all metabolic activities, this wreaks havoc on the entire body.

“Insulin resistance and reduced glucose tolerance in rodents due to MSG consumption raise concerns about the development of obesity in MSG consuming humans. The same study revealed that MSG intake causes a disrupted energy balance by increasing the palatability of food and disturbing the leptin-mediated hypothalamus signaling cascade, potentially leading to obesity.”

Niaz, K., Zaplatic, E., & Spoor, J. (2018). Extensive use of monosodium glutamate: A threat to public health?. EXCLI journal17, 273–278. https://doi.org/10.17179/excli2018-1092

If you’re looking to improve brain and metabolic health, glutamine is a good place to start. Dietary sources include beef, chicken, fish, dairy, eggs, beans, beets, celery, kale, Brussel sprouts, papaya, wheat, and fermented foods like miso and kimchi.

Endorphins

Endorphins are discussed in fitness circles as the chemicals responsible for that “runner’s high” people experience after vigorous physical activity. Their main job is to minimize pain and discomfort and understanding how they work led to the development of opioid drugs like codeine, morphine, fentanyl, and oxycodone.

Using positron emission tomography (PET) scans, researchers were able to view athlete’s brains both before and after exercise. They found an increase in the release of endorphins after exercise. This led to a wealth of research on how exercise affects our mood, ability to focus, and even clinical depression.

“30 community-dwelling moderately depressed men and women were randomly assigned to an exercise intervention group, a social support group, or a wait-list control group.17 The exercise intervention consisted of walking 20 to 40 minutes 3 times per week for 6 weeks. The authors reported that the exercise program alleviated overall symptoms of depression and was more effective than the other 2 groups in reducing somatic symptoms of depression.”

Craft, L. L., & Perna, F. M. (2004). The Benefits of Exercise for the Clinically Depressed. Primary care companion to the Journal of clinical psychiatry6(3), 104–111. https://doi.org/10.4088/pcc.v06n0301

You may have low endorphin levels if you experience:

  • Depression
  • Chronic headaches
  • Fibromyalgia
  • Low energy
  • Chronic pain thought the body

If you’re looking to improve your mood, decrease pain, and maintain brain health, exercise is a great way to boost endorphins. You can also meditate or practice yoga, eat some dark chocolate, or do an activity that makes you laugh. Feeling good is usually an indicator that you’re doing the right things.


At the Institute for Human Optimization, we utilize a unique approach to brain health optimization by taking into account your unique genomic blueprint. We are accurately able to identify patterns of genes involved in neurotransmitter synthesis and metabolism along with risk factors for premature cognitive decline. We then correlate this data with personalized brain health assessments to determine any underlying brain-based imbalances and give you relevant lifestyle recommendations.