Explainers on the biology behind your plan.
Longer reads on training, markers, and longevity: how Zone 2 is actually calculated, what ApoB measures that LDL doesn't, why a trend matters more than a single result.
Educational content, not medical advice, and not a substitute for your own doctor.
Zone 2 training: the complete guide
Zone 2 is the aerobic base most plans get wrong, because most plans calculate it instead of measuring it. Here's what a threshold test changes, and the error margin the shortcuts carry.
VO2max and longevity: why this number predicts more than speed
VO2max falls roughly 10% per decade without training and is among the strongest predictors of long-term mortality in the published research. What the number means, and what actually raises it.
Biological age vs chronological age: what PhenoAge actually measures
Biological age isn't a vibe. PhenoAge is a mortality-validated algorithm built from nine standard blood markers. If one is missing, the honest answer is "cannot compute" — not a guess dressed up as a number.
ApoB vs LDL: the cardiovascular number most reports skip
Two people with identical LDL cholesterol can carry very different cardiovascular risk. ApoB counts the actual artery-damaging particles — here's why that distinction is now considered causal, not just correlated.
Why "normal" isn't the same as "fine": reading the direction of your HbA1c
HbA1c moving from 5.4 to 6.3 over six months is inside the normal range at both ends — and one of the clearest early warnings there is. Most reports show you a green tick twice and miss the trend entirely.
Vitamin D deficiency in a sunny country: why it's so common in India
Widespread vitamin D deficiency across India despite abundant year-round sunlight comes down to indoor working hours, air quality, clothing coverage, and skin pigmentation — not a lack of sun.
Why prediabetes is so common in India
136 million Indians have prediabetes, more people than the population of most countries. It isn't one cause. It's a diet, an activity level, and a body that stores risk differently, compounding for years before a blood test says anything.
High blood pressure and body weight: what the data actually shows
More than one in three Indian adults has high blood pressure, and it tracks closely with body weight and visceral fat, not just salt. Here's what the relationship actually looks like, and what moves it.
Why Indians get metabolic risk at lower BMIs
A BMI of 23 can carry real metabolic risk in a South Asian body, risk a standard Western reference range wouldn't flag until 27 or higher. Here's the research behind why, and what's worth measuring instead.
Heart disease is India's leading cause of death, and it starts years earlier than you'd think
Nearly one in three deaths in India is from cardiovascular disease, more than any other cause. It doesn't start in the chest. It starts with the same glucose, blood pressure, and cholesterol numbers that show up on an ordinary blood report, often a decade before anyone notices.
Ready to see what your own markers are doing?
Upload a report you already have, or start with your goal and add one later.
Start with your baseline