Dr Rangan Chatterjee#1 Aging Expert: Dementia, Diabetes & Heart Disease Start After 40 When You Ignore This
At a glance
WHAT IT’S REALLY ABOUT
Proactive biomarkers and hormones to preserve health beyond forty years
- Modern healthcare is largely reactive, so by the time people are labeled diabetic or at cardiovascular risk, pathology has often been developing for decades.
- Aging-related decline becomes more measurable in the 40s (and again in the 60s), making early, trend-based monitoring more useful than one-off “normal range” tests.
- Comite’s “five biomarkers of True Health” emphasize carbohydrate metabolism (fasting glucose, HbA1c, fasting insulin), lipid risk ratio, and free testosterone as practical signals of aging trajectories.
- Continuous glucose monitors and other wearables can help individuals connect daily choices (food order, alcohol, sleep, timing of meals) to real-time physiology and reinforce behavior change.
- She contends testosterone optimization (often via hCG in men) can improve body composition, glucose control, cognition, and bone health, while acknowledging dosing/monitoring is needed to manage risks like elevated hematocrit.
IDEAS WORTH REMEMBERING
5 ideas“Normal ranges” can mask early disease trajectories.
They argue lab reference ranges reflect population averages in a generally unhealthy population, so being “normal” may still mean trending toward diabetes, heart disease, or cognitive decline; tracking direction over time is emphasized over one-off results.
Carbohydrate metabolism dysfunction is an early driver of aging diseases.
Comite frames insulin resistance and glucose volatility as upstream contributors not only to diabetes but also to cardiovascular disease, dementia, cancer risk, and even bone health—often appearing decades before symptoms.
Fasting insulin is a missing but crucial early warning signal.
She claims fasting insulin changes well before HbA1c crosses prediabetes thresholds and should be near undetectable after an adequate fast; without it, people may miss the window for early reversal.
HbA1c targets should be more ambitious than standard cutoffs.
She advocates an “optimal” HbA1c below 5.0 and notes risk rises in small increments above that, challenging the comfort many systems have with “near-diabetes” values that are still labeled normal.
CGMs turn lifestyle advice into personalized, testable feedback loops.
Because individuals can respond very differently to the same food (banana vs cookie example), CGMs help people identify their own triggers, test interventions, and stay adherent by seeing measurable improvements.
WORDS WORTH SAVING
5 quotesThe biggest myth is that you can wait. You can wait until you're sick.
— Dr. Florence Comite
Diabetes, heart disease, dementia, that's not overnight. It's not what happens from one week to the next. Your heart attack has been brewing generally under the surface for decades.
— Dr. Florence Comite
You're told you're normal, but that normalcy, what so-called normal, is based on a derivative of average of one size fits all in a sick population.
— Dr. Florence Comite
If you're gonna age, don't you wanna be in charge of all your facilities?
— Dr. Florence Comite
You cannot work out harder, do more, eat more protein, and raise your te- raise your testosterone with any supplement that I've ever tested.
— Dr. Florence Comite
High quality AI-generated summary created from speaker-labeled transcript.
