The magazine of preventive health and longevity.
Sourced, fact-checked articles written by doctors and experts, to understand, prevent and act every day.
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,…
Red light therapy: how photobiomodulation acts on your cells
Red light therapy activates an enzyme in the mitochondria and boosts ATP. Here is what human trials really show for skin, joint…
L-Carnitine: Proven Benefits, Dose, Timing and Precautions
L-carnitine shuttles fatty acids into the mitochondria. Here is what 37 randomized trials show on weight, muscle and fatigue, the effective 2…
Cycling: 5 Proven Effects on the Heart, Knees and Longevity
Cycling strengthens the heart and spares the knees. Large cohorts link it to lower mortality, less cardiovascular disease and less knee osteoarthritis.…
Sedentary Behavior: How Sitting Damages the Heart and Muscles
Sedentary behavior damages the heart and muscles even in people who exercise. Beyond 10.6 hours of sitting a day, heart failure risk…
Swimming Benefits: 5 Proven Effects on the Heart and Joints
Swimming benefits the heart and joints alike, lowering blood pressure and easing arthritis pain, according to large British cohort studies and randomized…
Marathon Heart Health: What Long-Distance Running Does to Your Heart
A marathon raises cardiac stress markers on race day, but regular running lowers cardiovascular mortality over the years, according to five major…
Brown Fat: 3 Proven Ways to Actually Activate It
Brown fat burns calories to produce heat instead of storing it. Three human trials confirm that cold exposure, chili capsinoids and a…