The science of living longer
Evidence-Based Longevity Science
News, reviews and guides on longevity. We explain peer-reviewed research in plain English — no hype, no wellness mysticism.
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Making sense of longevity science together
We collect the research on aging and explain it in plain language: what actually works, and what is just marketing. Follow along to get what matters and put the science to use — the goal is Healthspan (healthy life expectancy), not just more birthdays. When the evidence comes down to numbers on your own blood panel, How to read your labs and manage your longevity is a good place to start decoding them.
Read the articlesAbout the project
Longevity science, explained honestly
Longevity Lab is an independent publication on the science of living longer. We work from peer-reviewed studies, cite every source, and update our articles as new data arrives. If you want the underlying primer on why bodies wear out at different speeds, our companion site Smart Longevity lays it out in Longevity — the science of aging more slowly.
We do not sell supplements and we do not give medical advice — we explain what the research shows, down to what a single Biomarker of aging can and cannot tell you.
More about the projectOur four principles
Sources only
Every claim links to a study. Meta-analyses and randomized trials come first.
No hype
An evidence-led tone. No mysticism, no promises to cure everything.
Kept current
We revise articles whenever new data and new studies appear.
Useful to you
We write so the science can be applied, not just read.
What matters most for a long, healthy life
Research suggests heredity explains only part of the difference in lifespan — the larger share comes down to lifestyle and environment. Which means much of it is within your control — sleep, movement, food and how much Chronic stress you carry. Knowing where you stand today starts with measurement, and Biological age tests: what to measure and how to choose a method compares the main approaches, from epigenetic clocks to blood-based models.
Latest articles
- What to Do After You Calculate Your BMI
Take the waist, check blood pressure, get a fasting panel, test your strength. Those four turn a screening number into a decision. - DEXA, BIA and Calipers, Compared
Four methods, four error profiles. The right one depends on whether you need an absolute number, a regional breakdown or just a reliable trend. - What a Home Body Fat Scale Really Measures
Bioelectrical impedance infers body fat from how easily a current crosses tissue. Hydration, food and exercise all move it, often by several points. - BMI and Your Biological Age
Obesity accelerates epigenetic aging measurably, particularly in liver tissue. As a predictor of biological age, though, BMI is far weaker than a blood panel. - How Often You Should Weigh Yourself
Trials favour daily weighing over weekly, but only if you track the trend. Day-to-day swings of 1-2 kg are water, food and glycogen, not fat. - The BMI Thresholds for GLP-1 Medication
The licensed thresholds are BMI 30, or 27 with at least one weight-related condition. The comorbidity question is asked before the weight question for a reason.
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New research and longevity breakthroughs
The essentials from aging science, always linked to the primary source.
Read the newsSupplements, tests and devices, reviewed
We compare and rate them on the evidence — no ads, nothing for sale.
See the reviewsStep-by-step longevity protocols
How to apply the science: nutrition, sleep, movement, supplements.
Open the guidesBiomarkers and biological age
What your lab results show, and how to tell how worn your body really is.
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