The magazine of preventive health and longevity.
Sourced, fact-checked articles written by doctors and experts, to understand, prevent and act every day.
Osteoarthritis and Longevity: The Link Proven by Science (2026)
Does osteoarthritis raise the risk of premature death? Cohort studies link certain forms of the disease to higher cardiovascular and metabolic mortality,…
Ashwagandha: Proven Benefits, Dosage and Safety (2026)
Ashwagandha is an adaptogenic plant studied in clinical trials for its effects on stress, sleep and muscle strength. This guide covers dosage,…
Vitamin B12: Deficiency, Proven Benefits, and Optimal Dose (2026)
Vitamin B12 deficiency often develops silently for months, especially after age 60, in vegans, and during certain treatments. Learn the symptoms, the…
Low or High Ferritin Levels: What This Blood Marker Reveals
Ferritin levels show how much iron the body has in reserve. Learn the normal ranges, what causes low or high results, and…
Magnesium and Sleep: Which Form to Choose and What Dose?
Magnesium and sleep are closely linked: some forms, like bisglycinate, may help you fall asleep faster and rest more soundly, though effectiveness…
Walking Speed and Longevity: What Your Pace Reveals
A simple 4-meter walking speed test predicts survival, frailty risk and independence after 65, according to large international cohort studies covering tens…
Blood Longevity Markers: A 4-Lever Protocol to Improve Them
Blood longevity markers such as CRP, glucose and cholesterol respond to lifestyle changes within months. This 4-lever protocol ranks activity, sleep, diet…
Phenotypic Age: The 9 Biomarkers That Make Up the Calculation
Phenotypic age blends nine common blood values into a single score that predicts mortality and chronic disease risk better than calendar age…
Chronic Inflammation (Inflammaging): 7 Proven Levers
Chronic low grade inflammation, or inflammaging, quietly drives most age related disease, from heart disease to type 2 diabetes. Here are 7…