The magazine of preventive health and longevity.
Sourced, fact-checked articles written by doctors and experts, to understand, prevent and act every day.
Histamine: how it acts on the gut, the skin and the brain
Histamine acts on your gut, skin and brain every day. Here is how its four receptors work, why intolerance is still debated…
DNA Test: What Can It Really Predict About Your Disease Risk?
Can a DNA test really predict your diseases? From BRCA mutations to polygenic scores and online kits, here is what genetics can…
How to increase deep sleep when it declines with age
Deep sleep shrinks sharply between 25 and 50. Exercise, a warm bath before bed, earlier caffeine cutoffs and sleep apnea screening can…
Vaping vs smoking: what are the real risks for the heart and lungs?
Vaping exposes the heart and lungs to far fewer toxicants than smoking, but it is not harmless. Here is what trials and…
Fever after 60: why it misleads and when to see a doctor
A fever after 60 is often weak or missing, even during a serious infection. Here are the lower temperature thresholds for older…
Blue light: what science really says about your sleep
Blue light from screens and lamps delays melatonin, but filtering glasses and night mode do little. Here is what the research shows,…
Depression After 60: 7 Signs That Mean It’s Time to See a Doctor
Depression after 60 often shows up as fatigue, pain, withdrawal or forgetfulness rather than sadness. Here are the seven signs that call…
Beetroot juice and blood pressure: what dose works, and for whom
Beetroot juice lowers systolic blood pressure by 4 to 8 mmHg in trials, but only at the right nitrate dose and mainly…
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…