Your DNA determines an overwhelming amount of information about who you are, what you look like, and how certain environmental factors influence your overall health. This is why at the Institute for Human Optimization, we aim to be a wellness intelligence partner for our patients, using the latest genomic testing to empower them to reach their full human potential. By generating your unique comprehensive genomic profile, we are able to gain insight into your genetic makeup and help you take your health into your own hands. In this week’s post, we’re discussing the human genome, and how we help our patients use this knowledge for the prevention, early diagnosis, and personalized treatment of complex, chronic conditions.


In virtually every cell of your body is a complete copy of the three billion DNA base pairs that make up the human genome.

The study of the human genome is different from the study of genetics in that it focuses on the entirety of the genetic makeup and tries to sequence it. This is an ongoing research subject, mainly carried out by the Human Genome Project. But why is this important to you and your personal health journey?

Everything starts in the genome- from what you look like, to what disorders you’re predisposed to, to what foods you should and shouldn’t eat, it’s all there. And thanks to decades of research, we now have advanced molecular testing that can predict how genes are behaving by assessing their structural makeup and biochemical expressions.

At the Institute for Human Optimization, we utilize what we refer to as a “genotype to phenotype approach”. Your phenotype is the physical expression of the genome. It’s the way your genome produces blue eyes instead of brown, or curly hair instead of straight. It’s the way your genes influence your resting heart rate, blood pressure, or response to stress. These traits can be measured and therefore, manipulated.

An article in the New England Journal of Medicine describes how our genes are marked by experience. There are molecular “tags” that influence gene expression, even to the effect of “turning up or down the volume” on specific genes. For example,

“Men whose grandfathers were exposed to the Swedish famine in Överkalix before puberty tend to die at an earlier age from various common diseases than men whose grandfathers were not exposed to the famine. Both the Dutch Hunger Winter and the Great Leap Forward of China involved mass starvation of the population, and in both cases, fetal exposure to famine during the first trimester of gestation was associated with an incidence of schizophrenia in adulthood that was twice as high as the incidence among adults who had not been exposed during gestation.”

N Engl J Med 2018; “The Key Role of Epigenetics in Human Disease Prevention and Mitigation”
DOI: 10.1056/NEJMra1402513

By combining individualized genomic blueprint analysis and phenotypic biomarkers as well as biometric data tracking over time, the Institute is able to help us guide your health decisions, behavioral patterns, and therapeutic interventions. In return, there’s the potential for improved health outcomes, quality of life, and longevity. 

Your life choices affect how your genes are expressed, and the only way to find out how to hack this system is with genome testing.

How We Test

As an institution that prioritizes hard data over trial and error, we use advanced molecular testing to map out your personal genome and apply this data into what we call a “Personalized Prescriptive Performance Program“. Your genetic makeup, lifestyle, and goals are not the same as the next person’s, so why should your healthcare strategy mirror theirs?

To get the basis for your program, we rely on the cutting edge software developed by Dr. Peter D’ Adamo, Opus23. It uses a sample of your DNA to generate a report detailing any genetic discrepancies you may have. There are distinct polymorphisms that can occur within the genes that change the way those genes are expressed. We covered this in a previous blog post, “Epigenetics: How to Control Your Gene Expression”.

Genomic testing is used to evaluate common genetic variations known as single nucleotide polymorphisms (SNPs). The presence of specific SNPs may indicate a predisposition for health vulnerabilities. SNPs may be assessed in multiple functional areas including cardiovascular, detoxification, methylation, immune modulation, and estrogen metabolism.

By understanding your genetic foundation, we can recommend vitamins, supplements, and therapies to truly optimize your health. This information can give you insight into how your genes are behaving and how to tackle possible health problems at their root cause before they begin. Prevention is always better than a cure.

The platform we use reports on over 5,200 SNP variants and their influence on:

The Future of Healthcare

The Institute for Human Optimization operates on the principles of integrative and functional medicine. We believe the future of healthcare lies in educating patients on how to live their lives in a way that promotes health and builds up resiliency so old age is not synonymous with disease and chronic illness.

Using a variety of testing methods as well as a detailed client intake process, we create a Personalized Prescriptive Performance Program for your unique genome and goals using the following:

  • Nutrigenomics – the way your genes dictate how your body metabolizes vitamins, minerals, and nutrients. For example, a polymorphism in the BCO1 gene can cause a person to not metabolize vitamin A correctly. Supplementing with extra vitamin A may be helpful in negating health consequences from having this genetic polymorphism.
  • Pharmacogenomics – Offers insight into predicting drug responses and clinical outcomes. It can be used to reduce adverse events, and select the correct dosing and timing of administration of medications. This is largely due to the metabolizer status of the individual.
  • Microbial Genomics – the way our genes influence our resident microbiome population and biodiversity. For example, FUT2 gene variations influence an individual’s sector potential of placing an H antigen oligosaccharide on the intestinal mucosa which acts as both an attachment site and a carbon source for intestinal bacteria.
  • Longevity Genomics – the study of longevity genes is a developing science. It is estimated that about 25 percent of the variation in the human life span is determined by genetics, but which genes, and how they contribute to longevity, are not well understood. A few of the common variations (called polymorphisms) associated with long life spans are found in the APOE, FOXO3, and CETP genes, but they are not found in all individuals with exceptional longevity. 

By detailing your genome, we can often predict what will happen before it does. We can understand how your body is functioning and what we need to do to optimize your health from the genome to the phenome.

To schedule a consultation with the Institute for Human Optimization or find out more about genome testing and the Opus23 software, click here.

Evolution has two ultimate goals: survival and reproduction. We’ve covered the basic survival hormones, adrenaline, and cortisol, responsible for dealing with stress and initiating the “fight or flight” response. We’ve covered most of the hormones that serve as chemical messengers to tell your organs what to do. And we discussed the all-important thyroid and how to test its functions. In the final installment of our endocrine series, we’ll be delving into the reproductive aspect of hormones, how they regulate body functions and the latest technology for comprehensive hormone testing.


Most people are familiar with the three basic sex hormones- testosterone, estrogen, and progesterone. What’s less well-known is that these hormones do so much more than regulate sexual functions. They’re a vital part of keeping the body working properly, just like the rest of the hormones involved in the endocrine system.

Nothing in the body exists in a vacuum. Hormones are part of a complex system consisting of chemical signals, cellular receptors, glands, and organs. Researchers are still in the process of discovering the ins and outs of the endocrine system, and therefore it can be difficult for medical practitioners to diagnose and treat hormonal imbalances.

Thankfully, today there is a wide base of knowledge regarding hormones and testing you can do to get an idea of how yours are behaving. Men and women have very different requirements for their sex hormones and understanding the difference can be helpful to take proactive steps to better endocrine health.

Testosterone

Testosterone is the sex hormone most people relate to manliness- muscles, beards, deep voices, and testicles. And though it does have an effect on all these things, the truth is women have testosterone too (though in less abundance).

Testosterone is produced in the testes in men and the ovaries in women. All testosterone production is stimulated by the master pituitary gland and has a variety of functions including bone development, muscle growth, and body hair. It is testosterone that tells a boy’s body to become a man’s and keeps them feeling energetic and vital throughout life.

Like all hormones, the body requires a balance to operate efficiently. As men age, they experience a decline in testosterone that can happen gradually or quickly depending on a number of factors. Decreased testosterone in men can cause weight gain, decreased sexual desire, type 2 diabetes, thyroid imbalances, bone loss, muscle loss, and even cancer. That’s why it’s important to take note of testosterone levels as you age and make sure you’re living a lifestyle that promotes healthy production.

When a man is stressed (either from lifestyle factors, eating too few calories, or constant extreme cardio exercise), he produces the stress hormone, cortisol. Cortisol is known to decrease the amount of free testosterone in the body, meaning there is less that can be absorbed into cells to make things happen.

Measuring testosterone levels has been an ongoing challenge in medicine. Currently, blood serum is used to test hormone levels and is often used to diagnose endocrine disorders. It is known that in men, testosterone secretion follows a circadian rhythm, being highest in the morning and decreasing during the day. Therefore, it’s best to take samples for testing in the morning hours for the most accurate results.

Men, on average, have 7-8 times more testosterone than women. This makes testing for imbalances in women more challenging. There have also been varying measurements observed between laboratories, giving researchers a reason to begin looking for better methods of testing.

Estrogen

Estrogen is the “female hormone” but is also found in men. It’s produced mainly in the ovaries, but also in the adrenal glands and fat tissue.

Estrogen is not a single hormone, but a collective name we give to all three forms of it- estrone, estradiol, and estriol. Together they help tissues grow (namely, the breasts, ovaries, and prostate) and help regulate serotonin in the brain.

Estrone (E1) is a weak estrogen. It is mostly produced by women that are post-menopausal. The effects of low estrone or high estrone levels are not currently well known but it is commonly associated with breast and prostate cancer. Because it’s produced in adipose (fat) tissue, women who are obese will produce more estrone and be put at risk for these cancers.

Estradiol (E2) is the primary estrogen produced in women during their child-bearing years. Its main duty is to mature the reproductive system and maintain it. It is the strongest of the estrogens and protects bone density, growth hormone levels, and mood in both men and women (though women have higher levels).

Having too much estradiol has been associated with acne, loss of sex drive, constipation, and depression. Extremely high levels can put women at risk for uterine and breast cancer. As a woman ages, her estradiol levels drop, resulting in the cessation of the menstrual cycle and the symptoms of menopause- hot flashes, mood swings, and vaginal dryness.

Estriol (E3) is the weakest form of estrogen and is responsible for protecting breast tissue and vaginal health. By occupying the receptors for estrone, it blocks its cancerous effects and maintains a healthy reproductive system.

Progesterone

Progesterone is a precursor for testosterone, estrogen, and cortisol. In women, it works with estrogen to regulate the menstrual cycle and prepare the body for pregnancy. Most contraceptives are a mix of estrogen and progestin, a chemical created to bind to progesterone receptors and stimulate the same effects. (Progesterone is not well-absorbed orally.)

Because progesterone becomes cortisol (the stress hormone), people who are constantly stressed will often have low levels of progesterone. In men, this means less progesterone gets to become testosterone, which can lead to problems like depression, muscle loss, weight gain, decreased sexual desire, and bone loss.

Women with low progesterone levels may struggle to conceive because the body needs the hormone to create an environment for a fertilized egg to grow. These women may also have a higher risk of miscarriage.

The Dutch Test

At the Institute for Human Optimization, we take testing to the next level. While most physicians rely on blood serum testing for hormone levels, we prefer the Dutch test. Using five dried samples of urine over a 24 hour period, the Dutch test provides the most comprehensive assessment of sex and adrenal hormones and their metabolites. It also includes the daily, free cortisol pattern, organic acids, melatonin (6-OHMS), and 8-OHdG.

Hormone levels vary throughout the day. Additionally, there is a lack of extensive metabolite testing when using serum (especially for cortisol and estrogens). Our goal is to get the most accurate depiction of your health so we can guide you to the hacks and habits that will increase your healthspan. Some people metabolize and produce hormones in the balanced amounts, some don’t.

This is why we treat each patient as an individual, using the latest testing technology as it changes to meet the growing demand for personalized, integrative medicine.

To schedule a consultation with the Institute for Human Optimization, click here.

There’s a tiny gland in your neck, right below the Adam’s apple, that is responsible for almost all of your bodily functions. It’s called your thyroid and because you literally can’t live without it, it’s vital to keep it functioning properly. In Part I of our endocrine series we discussed the basic structures and functions of the endocrine system. In Part II we dove into how the HPA axis works with cortisol to manage stress. In this part, we’ll talk about the all-important thyroid and how the Institute for Human Optimization assess patient thyroids with the latest testing to guarantee accurate results.


Your thyroid works a bit like your air conditioner. The pituitary gland is the thermostat, it senses when your body is low on hormones and sends a signal to the thyroid using TSH (thyroid-stimulating hormone).

When the thyroid picks up the TSH, it pumps out the exact amount of hormone needed to make sure everything runs smoothly. Your thyroid is responsible for a variety of functions including menstrual cycles, metabolism, heart function, brain functions, digestion, and mood.

Its main responsibility is converting iodine from food into thyroid hormones, known as thyroxine (T3) and triiodothyronine (T3). Thyroid cells are the only cells in the body that can absorb iodine. T4 is responsible for your metabolism, mood, and body temperature, among other things. T3 is made in the thyroid gland but can also be made in other tissues within the body by converting T4 into T3.

If you have a properly working thyroid, it’ll dispense about 80% of the T4 hormone and 20% of the T3. About half of the T4 will be converted into T3 throughout the day. Whatever isn’t used gets flushed out in a process called reverse T3.

Basically, reverse T3 (rT3) is an inactive ‘thyroid hormone’, but one that can sometimes cause health issues when everything else is seemingly functioning as it should be. Because T3 and rT3 compete for spots on cellular receptor sites. If there’s too much rT3, regular T3 can’t bind to the receptors, weakening its effects. This can result in symptoms of hypothyroidism, even if T3 levels are within range.

In early humans, stress from starvation or danger would trigger the reduction of rT3, slowing the metabolism and conserving energy. This is why today when we go on sudden crash diets or suddenly take up intense cardio workouts, our bodies respond the same way they always have- shutting down functions like sexual reproduction and digestion. If you’re running from danger or starving, your body sees no reason to have kids and can inhibit sex hormones such as testosterone.

Some common reasons for thyroid disorders include:

  • Starvation or radically reducing calories for an extended period of time
  • Poor blood sugar management
  • Nutritional deficiencies
  • Chronic inflammation
  • Chronic stress (cortisol, the stress hormone, is vital for converting T4 into rT3)
  • Chronic illness

Thyroid Disorders

It’s estimated that about 12% of the United States population will experience some kind of thyroid disorder in their lifetime. It’s helpful to know the differences between the most common thyroid disorders and their symptoms so you can get treatment as soon as possible.

  • Hypothyroidism
    This is caused by an underactive thyroid and can cause fatigue, weight gain, weakness, depression, sensitivity to cold, slow heart rate, and in extreme cases, coma. Diagnosis for hypothyroidism generally follows a test resulting in high TSH l and low T4 levels. Treatment generally includes supplementation of thyroid hormone and doctors must be careful to get the dosage right and not cause the opposite reaction.
  • Hyperthyroidism
    Hyperthyroidism is the opposite- the thyroid is overactive and producing too much hormone. This is more common in women than men and can cause anxiety, racing heart, thin skin, irritability, brittle hair and nails, and weight loss. People who suffer from hyperthyroidism generally test low for TSH and high for T4. Doctors will prescribe drugs that inhibit the thyroid or in extreme cases, surgically remove a portion of it.
  • Hashimoto’s Thyroiditis
    In this form of hypothyroidism, the immune system attacks the thyroid and begins to destroy it. Symptoms include heavy or irregular menstruation, pale puffy face, fatigue, intolerance to cold, thinning hair, or enlargement of the thyroid. There is no cure for Hashimoto’s and it can only be distinguished from hypothyroidism by testing the blood for TPO antibodies. A recent study suggested that cutting out gluten could provide clinical benefits to women with Hashimoto’s disease.
  • Grave’s Disease
    This is another autoimmune disease in which the immune system mistakenly attacks the thyroid. However, Grave’s disease causes the thyroid to overproduce the hormone responsible for regulating metabolism, resulting in increased heart rate, anxiety, bulging eyes, and possibly hand tremors. People with Grave’s disease will have low levels of TSH and high levels of T4, similar to hyperthyroidism. Similar to Hashimoto’s, there is no current strategy to stop the immune system from attacking the thyroid so managing symptoms using beta-blockers, iodine, and possibly surgery are the common forms of treatment.
  • Goiter
    Goiter is a noncancerous enlargement of the thyroid gland. Generally, this is caused by a lack of iodine in the diet. In the US people consume plenty of iodine in the form of table salt, so a goiter is usually a symptom of hyperthyroidism. Due to the thyroid’s placement in the throat, enlargement can cause difficulty breathing or swallowing, hoarseness, and tightness in the neck. Goiters can be left alone if they’re not severe but often require surgery to remove.

Testing the Thyroid

Doctors today have an abundance of testing technology to properly diagnose thyroid disorders. While they used to rely solely on testing TSH, they’re now able to test all thyroid hormone levels and get a more accurate depiction of function.

At the Institute for Human Optimization, we provide a complete hormone panel for our patients. We test for TSH, T3, T4, and reverse T3 levels to take a deep dive into how your thyroid is functioning. So many organs and structures rely on the thyroid to work properly, so it’s of the utmost importance that we treat any signs of hyper or hypothyroidism immediately.

A recent study found that taking biotin supplements can actually throw off testing, making it seem like Grave’s or Hashimoto’s when the thyroid is actually functioning properly. It’s important to let your doctor know if you’re taking biotin before testing and possibly stop the supplements temporarily to get accurate results.

If you suspect you might have thyroid issues, contact your physician for testing or schedule a discovery call with the Institute for Human Optimization here.

Stress is a strange phenomenon, a signal that indicates to your body something is threatening your life and you need to do something about it immediately. As cave-dwelling Homo sapiens, stress looked like animals trying to eat you or not finding enough water to survive. Today, our stressors are not always life-threatening, but our bodies don’t know the difference. In Part I of our hormone optimization series, we discussed the major structures of the endocrine system and which hormones are responsible for what body functions. This week, we’ll zero in on the complex feedback loop that strives to keep you safe, the role of cortisol, and what you can do to reduce the negative effects of prolonged stress on your health.


Jack just opened a restaurant. Though he’s worked in restaurants for most of his adult life, this is the first time he’s owned his own business and taken on all the stress that comes with it. There are employees to manage, orders to make, bills to pay, and a slew of customers to win over.

As Jack walks around the restaurant, he thinks about all the things that could go wrong. The cook could quit. The food could be spoiled upon arrival. The waitresses could be stealing money. The customers could be unsatisfied with their experience.

Jack’s brain processes these imaginary events as reality. It doesn’t completely distinguish between perceived danger and actual danger. As a result of millions of years of human evolution, Jack’s body prepares itself for stress the only way it knows how- activating the HPA axis.

Role of the HPA Axis

The HPA axis is a feedback loop that regulates your reactions to stress. Specifically, it links the hypothalamus, pituitary gland, and adrenals- all vital parts of the neuroendocrine system.

The loop begins when something stressful happens- one of the waitresses at Jack’s restaurant gets ill in the middle of the busiest shift of the week. As soon as Jack hears the news, his sympathetic nervous system is activated. Epinephrine and norepinephrine are released, the hormones responsible for the “fight-or-flight” response we once used to run from saber-toothed tigers.

With these hormones released, Jack’s HPA axis is in full swing. His hypothalamus (a small part of the brain concerned mainly with keeping the body in a state of homeostasis) secretes corticotropin-releasing hormone (CRH) into his bloodstream. In the brain, CRH increases feelings of anxiety and temporarily improves Jack’s memory and selective attention. He’ll need his brain in an attentive state to deal with whatever stressor he’s facing.

CRH is a message to the pituitary gland to secrete adrenocorticotropic hormone (ACTH) which travels to the adrenal cortex like a letter traveling to your mailbox, binding to adrenal receptors, and causing the final section of the loop- the secretion of cortisol, the “stress hormone”.

Role of Cortisol

As the night goes on, and more inevitably stressful events occur, Jack’s bloodstream becomes inundated with cortisol as his adrenal cortex pumps out the hormone a little at a time. Cortisol’s main job is to release glucose into the bloodstream to be used as instant fuel for either fighting or running from his problems. Each pump results in about fifteen minutes of sustained cortisol release.

Cortisol also helps shut down secondary functions like sexual desire and urinary urges. You wouldn’t want to have to pee while running for your life or fighting an enemy and Jack is able to cover the waitress’s entire shift without having to use the restroom.

Unfortunately, Jack’s stress does not end after the difficult shift. He carries the weight of the night home with him and wakes up to another day of difficult obstacles. Each event re-actives the HPA axis and starts the whole process over again, inevitably leading to elevated cortisol levels for long periods of time.

Many studies show this kind of chronic stress is not beneficial for longevity and overall well-being:

“It appears that being exposed to stress can cause pathophysiologic changes in the brain, and these changes can be manifested as behavioral, cognitive, and mood disorders (Li et al., 2008). In fact, studies have shown that chronic stress can cause complications such as increased IL-6 and plasma cortisol but decreased amounts of cAMP-responsive element-binding protein and brain-derived neurotrophic factor (BDNF), which is very similar to what is observed in people with depression and mood disorders that exhibit a wide range of cognitive problems.”

Yaribeygi, H., Panahi, Y., Sahraei, H., Johnston, T. P., & Sahebkar, A. (2017). The impact of stress on body function: A review. EXCLI journal16, 1057–1072. https://doi.org/10.17179/excli2017-480

If Jack is constantly bombarded with cortisol, his immune system is constantly suppressed. This leaves him vulnerable to disease and inflammation that can be detrimental to the body over time.

Cortisol also activates the autonomic nervous system, indirectly affecting the cardiovascular system. Jack’s heart rate increases, his muscles tense and contract, and blood flow is diverted from his organs to parts of his body that will help him fight or run. Again, this is all fine for a short period of time, but the organs need blood flow to operate correctly.

In addition, his hippocampus is extremely sensitive to stress and also responsible for the conversion of short to long-term memory. Animal studies show that a chronic state of stress can cause a reduction in the accuracy of spatial memory and negatively affect learning. Temporarily, Jack is sharper and better able to handle his environment. But over time, this kind of attention is not sustainable, and his brain physically begins to change to compensate for the abundance of cortisol.

How to Manage the HPA Axis and Cortisol

If you can understand how your body works, you can learn to work with it instead of against it.

If Jack wants to avoid the problems caused by an overactive HPA axis, he must start with what triggers the feedback loop in the first place- stress.

It isn’t an option for Jack to sell the business he worked so hard to acquire. Even if he did, he’d still have to deal with the stressors of modern life- finding new work, paying bills, handling family life, driving at speeds of 60mph on a daily basis, and anything else that comes up.

Eliminating stress is not possible and in short bursts, it’s not even harmful. It is the chronic, constant stress that slowly erodes our body functions and mental well-being.

Jack understands it is not the elimination of stressful situations, but how he deals with them that matters. He begins to implement the following lifestyle hacks to counteract the effects of cortisol and minimize the stress he feels from work and life:

  • Practice good sleep habits.
    Studies show a clear connection between sleep and cortisol levels. Not getting enough quality sleep affects you in all aspects of your health and being groggy during the day can cause more stressful situations to occur. Aim for 7-8 hours with little disruptions. Going to bed at the same time each night helps regulate the chronobiome and cortisol levels.
  • Exercise.
    A recent study had young participants perform moderate aerobic exercise three times a week and tested their cortisol levels via saliva. Interestingly, the study found that exercise increased cortisol levels initially following the workout to deal with the stress, but over a course of four weeks, their overall cortisol levels decreased. Many people report being exercise being beneficial for their mental state, helping them make more clear decisions and better able to regulate their emotions.
  • Practice meditation or mindfulness.
    Unfortunately, there haven’t been many large scale studies on the effects of mindfulness (focusing on being in the moment and doing things intentionally instead of letting your mind race on autopilot) on the HPA axis.

    Recently researchers did use a mediation retreat to test subjects’ cortisol levels before and after meditation as well as before and after the retreat as a whole. They did find that cortisol levels were decreased, but without another control group, the results are not unquestionable. However, it makes sense that quieting the mind and focusing on the moment would create less stress, and as a result, lower cortisol levels.

    Jack strives to focus on one task at a time and notice when his mind begins to worry about things he can’t control or things that happened in the past. Our bodies don’t understand the difference between a perceived threat and a real one and secrete cortisol either way.
  • Have fun.
    Jack’s business is important to him, but he understands that a balance must be struck if he’s to live a long and healthy life. He begins to make time for things he enjoys and doesn’t stress him out. He goes fishing on the weekends and hangs out with his family. If he finds himself feeling stressed at work, he makes a conscious attempt to put on music that makes him happy or make a joke about the situation to lessen the tension.

    If your mind perceiving stressful situations is what stimulates the HPA axis, then by changing the way you feel about the situation can help dramatically. Viewing obstacles as challenges, shifting your thoughts to ones of gratitude, and laughing all help to naturally lower cortisol levels. So make stressful things into fun things.

At the Institute for Human Optimization, we recommend our patients receive a hormone panel to get an idea of how their body is handling daily stressors. We take an integrative approach and aim to give people practical lifestyle hacks that can lower their cortisol and reduce the likelihood of diseases that occur as a result of chronic stress.

For more in-depth information on how to hack your health, check out Dr. Anil Bajnath’s book, “The Longevity Equation” or schedule an appointment with the Institute here.