The magazine of preventive health and longevity.
Sourced, fact-checked articles written by doctors and experts, to understand, prevent and act every day.
Uric Acid: Normal Levels by Age and Sex, and When to See a Doctor
Normal uric acid ranges from 210 to 420 µmol/L in men and 150 to 350 µmol/L in women before menopause. Here is…
Climbing stairs: how every floor works on your heart
Climbing stairs pushes the heart rate to nearly 160 beats per minute in about ten floors. Here is what 11 studies show…
Resting heart rate: the normal value for your age and sex
What is a normal resting heart rate? Figures by age and sex from 35,302 people, the thresholds that call for medical advice,…
Leucine: how much, when and who should take it
Leucine is the amino acid that switches on muscle building. Here is how much older adults need per meal, when to eat…
Hyperbaric chamber: what the science really says about aging
A 2020 study reported telomeres lengthened by more than 20% after hyperbaric chamber sessions. Here is what the trials really show about…
Dry Eyes After 60: 5 Proven Causes and When to See a Doctor
Dry eyes affect nearly one in five people after 80. Meibomian glands, hormones, medications, screens and diabetes: here are the 5 causes…
Cellulite: what really reduces it, according to clinical studies
Cellulite affects 80 to 90% of women after puberty. Here is what clinical trials really show for shock waves, injections, subcision, retinol…
Always cold after 60: 6 proven causes and when to see a doctor
Being always cold after 60 often reflects a slower body thermostat, but it can also signal hypothyroidism, anemia or narrowed arteries. Here…
Divorce and health: what are the real effects on life expectancy?
Divorce is linked to a 30% higher risk of early death on average, yet most people adapt well. Here is what studies…