longevity

The frontier of longevity is the search for a pill that slows aging. Learn what the science actually shows for the leading candidates, rapamycin, metformin, senolytics, NAD boosters, and GLP-1 drugs, how each targets a hallmark of aging, why results in mice so often fail in humans, and how to tell genuine research from supplement marketing. Evidence-first, not medical advice.

Two people can be the same age in years but decades apart in how their bodies have aged. Learn how scientists measure biological age with epigenetic clocks that read your DNA, what these tests can and cannot tell you, whether aging can really be reversed, and why even our data on the world's longest-lived people, the Blue Zones, turns out to be shakier than the headlines suggest.

Longevity advice is a sea of hype, but a few levers have genuinely strong evidence behind them. Learn to rank interventions by evidence quality, then meet the biggest proven ones: cardiorespiratory fitness (the single strongest predictor of lifespan), muscle strength, diet, sleep, and the avoidables. See the real numbers from large studies and why these boring basics act on the hallmarks of aging.

Aging is not vague wear and tear, it is a set of specific, measurable biological processes. Learn the crucial difference between lifespan and healthspan, then the twelve hallmarks of aging, the scientific framework of what actually goes wrong in the body over time, from telomere shortening and zombie cells to chronic inflammation, and why they form a connected web rather than a single cause.