ExplainerData and privacy
What happens to your data
Who can see your record, what survives account deletion, and why the link you give a doctor expires.
2 min read
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Articles
Biomarker explainers, longevity research and product updates — in one feed.
ResearchBiomarkersBiological age: why a single number settles nothing
There are many estimates of biological age and they disagree with each other. What to do about it, and what to watch instead.
1 min read
ExplainerBiomarkersThe Omega-3 Index and Longevity: A Fatty-Acid Biomarker You Can Change
A red-blood-cell measure of EPA+DHA that tracks with all-cause mortality — and responds to what you eat.
6 min read
ExplainerStressStress, Cortisol and Longevity: The Cost of Being Switched On
The stress response is a survival tool built for short bursts. Left switched on for months and years, it turns from protective to corrosive — and the wear-and-tear shows up in how you age.
3 min read
ExplainerBiomarkersVitamin D and Longevity: Correcting a Deficiency, Not Chasing a Number
Low vitamin D is genuinely common and associated with worse health — yet large trials show that supplementing people who are already replete does little. The nuance is the whole point.
6 min read
ExplainerMetabolismFasting Glucose and HbA1c: Reading Your Metabolic Health
Two blood-sugar numbers — a fasting snapshot and a three-month average — reveal how well your metabolism is coping, often years before anything is labelled 'diabetes.'
7 min read
ExplainerBiomarkersCholesterol and ApoB: The Particles That Build Plaque Over a Lifetime
Blood lipids are not just a correlate of heart disease — the ApoB-carrying particles causally build arterial plaque over a lifetime. Here is what LDL, HDL, triglycerides and ApoB actually mean.
7 min read
ExplainerBiomarkersInflammation Markers and Longevity: The Slow Fire of 'Inflammaging'
Acute inflammation heals you; chronic, low-grade inflammation slowly wears you down. It rises with age — 'inflammaging' — and a simple blood marker, hs-CRP, offers a window onto it.
7 min read
ExplainerMetabolismWaist-to-Height Ratio: A Two-Minute Marker of Where Your Fat Sits
You can measure it with a tape and a moment of arithmetic: divide your waist by your height. It captures something BMI misses — where your body stores fat, which matters more than how much.
6 min read
ExplainerBiomarkersBlood Pressure and Longevity: The Silent Number That Ages Your Arteries
Blood pressure is one of the few longevity markers you can check in two minutes — and one of the most consequential. It usually causes no symptoms while it quietly ages your arteries.
7 min read
ExplainerBiomarkersMuscle Mass and Longevity: The Reserve You Spend With Age
Muscle is not just for movement — it is a metabolic reserve the body draws on in illness and age. From about your thirties it slowly shrinks, and how much you keep tracks with long-term health.
4 min read
ExplainerSleepSleep and Healthspan: The Nightly Maintenance Window
Sleep is not downtime — it is when the body and brain run essential maintenance. Across large studies, both too little and too much sleep track with worse long-term health.
6 min read
Articles in this section are educational and are not medical advice, a diagnosis, or a prescription. Consult a qualified professional before acting on anything you read here.