The 5 Most Important Biomarkers That Influence Your Health & How To Live Better For Longer with Dr Florence Comite #666

Jun 16, 2026 Episode Page ↗
Overview

Dr. Florence Comite, a Yale and NIH-trained endocrinologist, challenges the reactive Western medical model, advocating for proactive health. She discusses five critical biomarkers, including fasting insulin and free testosterone, and explains how understanding individual physiology can defy genetic destiny and improve health and aging.

At a Glance
8 Insights
1h 41m Duration
16 Topics
7 Concepts

Deep Dive Analysis

The Myth of Waiting Until You're Sick

Defining Healthy Aging and Biological Youthfulness

Aging Patterns and Health Decline in the 30s

Limitations of Western Medicine's Reactive Approach

The Five Key Biomarkers of True Health

Importance of Fasting Insulin in Early Disease Detection

Optimal Biomarker Ranges and Health Continuum

Benefits of Continuous Glucose Monitors (CGMs)

The Critical Role of Testosterone for Men and Women

Testosterone, Muscle Loss, and Lifestyle Impact

Risks and Management of Testosterone Optimization

Women's Hormonal Health and Testosterone

The Need for a Health Creation System

Genetics, Epigenetics, and Personalized Health

The Future of Virtual Health and Data Ownership

Envisioning Your Health at 100

Reactive Healthcare System

A medical model focused on treating diseases once they manifest, rather than proactively preventing them or optimizing health before symptoms appear. This system often waits until conditions are advanced before intervention.

Proactive Prevention

An approach to health that involves actively monitoring biomarkers and making lifestyle or medical interventions early to prevent the onset or progression of chronic diseases, aiming to reverse decline rather than just manage illness.

N of One Medicine

A personalized medical approach that recognizes each patient as a unique individual, tailoring treatments and health strategies based on their specific biomarkers, genetics, and responses, rather than relying on population averages.

Carbohydrate Metabolism Disorders

A broad category of issues related to how the body processes carbohydrates, including insulin resistance, high or low blood sugar, and elevated insulin, which can precede type 2 diabetes by decades and contribute to many aging-related diseases.

Fasting Insulin

A critical biomarker that measures insulin levels after a period of fasting. It is important because elevated fasting insulin indicates insulin resistance and can signal metabolic dysfunction decades before blood sugar levels (like HbA1c) show signs of prediabetes or diabetes.

Free Testosterone

The biologically active form of testosterone, not bound to proteins, that is available to act on cells throughout the body. It is a vital hormone for both men and women, impacting muscle, memory, bone density, blood sugar, and heart health.

Epigenetics

The study of how environmental and lifestyle factors can influence gene expression without altering the underlying DNA sequence. This concept highlights that while we inherit a genetic 'rough draft,' our daily choices can change how those genes are expressed, impacting our health trajectory.

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What is the biggest myth about aging and health?

The biggest myth is that you can wait until you're sick to address health issues. Chronic diseases develop over decades, with detectable biomarkers long before symptoms appear, making proactive intervention crucial.

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When does health decline typically begin to become noticeable?

While peak health is often in the late 20s to early 30s, biological, metabolic, and hormonal changes that undermine future health often begin in the 30s, becoming more palpable in the 40s and 60s.

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Why is the current medical system insufficient for healthy aging?

The current medical system is primarily reactive, focusing on disease management rather than proactive health creation. It often uses broad 'normal' ranges for tests, misses early signs of decline, and lacks personalized, trend-based monitoring.

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What are the five key biomarkers for understanding biological age and health?

The five key biomarkers are fasting glucose, hemoglobin A1c (average blood sugar), fasting insulin, cholesterol risk ratio (total cholesterol divided by HDL), and free testosterone.

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Why is fasting insulin so important to measure?

Fasting insulin is critical because it can indicate insulin resistance and carbohydrate metabolism disorders decades before an HbA1c test shows prediabetes or diabetes, offering an early opportunity for intervention.

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How often should key biomarkers be tracked?

Ideally, key biomarkers should be tracked at least twice a year, and potentially three to four times, especially when making lifestyle changes, to monitor trends and assess the effectiveness of interventions.

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What can continuous glucose monitors (CGMs) reveal about individual health?

CGMs provide real-time data on how individual bodies respond to specific foods, movement, and lifestyle choices, highlighting personalized glucose fluctuations that can inform dietary adjustments and healthier habits.

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Is testosterone important for women too?

Yes, testosterone is an essential hormone for women, impacting bone health, memory, cognition, muscle mass, and sexual function. Women also experience a decline in testosterone from their 30s, contributing to weight gain and other issues.

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Can men increase testosterone through lifestyle changes alone?

While optimizing sleep can prevent testosterone from falling, lifestyle changes like diet and exercise generally do not increase testosterone to optimal levels once decline due to aging begins. Medical intervention, such as HCG or testosterone replacement, is often needed for optimization.

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What are the potential benefits of optimizing free testosterone in men?

Optimizing free testosterone can lead to increased muscle mass, loss of visceral and liver fat, normalized blood sugars, improved memory and cognition, better lipid profiles, increased energy, and enhanced libido and sexual function.

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Are there risks associated with testosterone replacement therapy?

If not managed effectively, high doses of testosterone can lead to erythrocytosis (increased red blood cells), which can cause sluggishness and blockages. Regular monitoring and appropriate dosing are essential to mitigate this risk.

1. Prioritize Proactive Health Investment

Invest in keeping your body strong, healthy, and mentally sharp proactively, rather than waiting until you are sick, as chronic diseases build over decades and are detectable and reversible early on.

2. Track Key Biomarkers Regularly

Monitor critical biomarkers like fasting glucose, HbA1c, fasting insulin, cholesterol risk ratio, and free testosterone at least twice a year, or ideally three to four times, to understand your health trajectory and identify issues early.

3. Monitor Glucose with a CGM

Wear a continuous glucose monitor (CGM) for at least 14 days to understand your individual blood sugar response to different foods, activities, and lifestyle choices, as this knowledge is life-changing for personalizing diet and habits.

4. Eat Protein Before Carbohydrates

Consume protein first in a meal before carbohydrates to create a slower, more gentle rise in blood sugar and insulin, preventing sharp spikes and subsequent crashes that can lead to hunger and irritability.

5. Optimize Free Testosterone Levels

Consider optimizing free testosterone levels, for both men and women, especially from the 30s onwards, as it is critical for bone health, memory, cognition, muscle mass, and metabolic health, and can significantly improve quality of life.

6. Address Sleep for Hormone Health

Ensure adequate, deep sleep (over an hour of deep sleep and REM) as poor sleep can lower testosterone levels, even if other lifestyle factors are optimized. Addressing sleep issues can help improve hormonal balance.

7. Stop Eating Before Bedtime

Aim to stop eating about two hours before bedtime, as wearing a CGM can reveal how late-night eating affects blood sugar fluctuations and potentially disrupts sleep.

8. Understand Your Genetic Risks

Recognize that family history reflects genetic expression; if conditions like dementia, osteoporosis, heart attack, or stroke run in your family, you are at risk, and this knowledge should drive proactive health decisions.

The biggest myth is that you can wait until you're sick.

Dr. Florence Comite

Decline is not inevitable, it's detectable. And because it's detectable, it's reversible.

Dr. Florence Comite

Staying youthful, strong, and mentally sharp as you age is the most important investment you can make in yourself and for the people you love.

Dr. Florence Comite

We're living longer, but not better.

Dr. Florence Comite

The way we practice it today is about disease. It's reactive. So we're 10, 20, 30 years down the line already and we've been dealing with these conditions under the surface.

Dr. Florence Comite

I think of normal as a bad word because there's nothing that's normal.

Dr. Florence Comite

You are the architect of your own health. Making lifestyle change is always worth it because when you feel better, you live more.

Dr. Rangan Chatterjee

HCG Protocol for Men

Dr. Florence Comite
  1. Administer a tiny shot (small needle) of HCG.
  2. Take the shot twice a week; once a week is insufficient.
  3. If resistance occurs, increase frequency to three times a week.
  4. Monitor pituitary hormones (LH and FSH) to assess responsiveness.

Macronutrient Order for Glucose Control

Dr. Florence Comite
  1. Consume protein first (e.g., eggs, salmon).
  2. Then, add carbohydrates afterwards (e.g., sweet potatoes).
  3. This order helps sugar rise slowly, like a gentle mountain, with insulin following closely, preventing sharp spikes and drops.
70 to 80
Optimal fasting glucose range Expressed in mg/dL, though units not specified in transcript, this is the common range for these numbers.
Less than 5
Optimal hemoglobin A1c (average blood sugar) Optimal level, indicating lower risk of diabetes and chronic disease.
Undetectable
Optimal fasting insulin Should be undetectable after 3 hours of not eating, as there's no food to process.
5.7
Prediabetes threshold (US) HbA1c level at which prediabetes is diagnosed in the US.
6.5 or above
Type 2 diabetes threshold HbA1c level at which type 2 diabetes is diagnosed.
Under 2
Optimal cholesterol risk ratio Calculated as total cholesterol divided by HDL (high-density lipoprotein).
1-3% per year
Testosterone decline rate Rate of muscle loss after age 30, influenced by dropping testosterone levels.
Twice a week
Frequency of HCG shots for men Recommended frequency for HCG injections to stimulate natural testosterone production.
A few months
Time for memory improvement on testosterone Typical timeframe for patients to experience improved memory after starting testosterone optimization.
25%
Percentage of men and women becoming osteoporotic Risk of osteoporosis for both men and women.