Longevity & Metabolic Health
Optimize your mitochondria, build muscle, regulate blood sugar, and increase your healthspan.
Lifespan is how long you live. Healthspan is how long you live well. True longevity is not about expensive biohacking trends. It starts with metabolic flexibility: how your body makes energy, regulates blood sugar, builds and preserves muscle, clears inflammation, and repairs over time.
This guide brings together Robin’s latest functional medicine writing on healthy aging, from GLP-1s and hormones to labs, mitochondria, cardiovascular markers, muscle, exercise, and the interventions that may actually move the needle.
Start here
New to longevity and metabolic health? These three reads give you the foundation: how to understand your labs, how hormones affect metabolism, and what newer longevity interventions can and cannot do.
A root-cause approach to metabolic aging
Many signs of aging begin as subtle metabolic changes: higher fasting insulin, rising ApoB, poor sleep, lower muscle mass, chronic inflammation, hormonal shifts, and slower recovery. Functional medicine looks for these patterns early, before they become disease, and uses labs, nutrition, strength training, sleep, stress regulation, and targeted interventions to improve resilience.
The goal is not to chase every longevity trend. It is to identify what your body needs most now, then build the habits, biomarkers, and clinical plan that help you age with strength, energy, and clarity.
Latest articles on longevity and metabolic health
Explore Robin’s latest research-backed essays on blood sugar, hormones, inflammation, muscle, mitochondrial health, cardiovascular risk, and aging well.-
Functional medicine changed my life.
I met functional medicine guru Dr. Mark Hyman before I went to med school. I’ll never forget what he told me: “Don’t get brainwashed.” Read more
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How to slow your aging velocity
Last week I co-hosted an event for New York’s YPO Women on female longevity at the Parsley Health center in NYC along with two brilliant speakers: nutritio Read more
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The cold plunge controversy
It’s summer and it feels like everyone is installing a cold plunge in their backyard or basement spa Read more
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Should we all be microdosing GLP-1?
If you’re frustrated that your body composition isn’t changing, microdosing GLP-1 might be the key. Read more
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Is it worth $2,500 to catch disease before it starts?
My MRI found a kidney tumor. Here’s what I’m doing next and what I recommend for you to get the most out of your health data. Read more
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VO₂ max: If you only track one number for healthspan, make it this one
VO₂ max—the maximum amount of oxygen your body can use during exercise—is one of the strongest predictors of how long (and well) you’ll live. Read more