Health summaries

Every laser targets red, brown, or water. Dermatologist Shereene Idriss explains which skincare can replace a laser package and where it truly cannot.

Biochemist Jared Rutter on how mitochondria decide whether a cell spends energy being itself or building more, and why overbuilding drives disease.

Two lipidologists on why ApoB drives atherosclerosis, how to read your risk with a lipid panel and Lp(a), and when high ApoB warrants early treatment.

Fiber feeds your microbiome, blunts glucose spikes, and triggers natural GLP-1, but pushing to 50 grams backfires if you have IBS or SIBO. Here is how to do it right.

Mark Hyman on his mercury poisoning, chronic fatigue, and six back surgeries, why he rejects metformin, and why foundations beat every biohack he has tried.

Microbiome scientist Emeran Mayer on how gut microbes turn food, stress, and toxins into inflammation or health, and why diet beats any single probiotic.

Sleep scientist Gina Poe explains what each sleep stage does, why a steady bedtime beats total hours, and how REM strips emotion from hard memories.

Muscle is where glucose goes and where insulin resistance shows up first, but one leg studies and a large review show that gaining muscle mass is not the fix.

A doctor who treated 25,000 patients shares five lessons on metabolic health, from catching diabetes early with fasting insulin to why hunger beats willpower.

A placebo controlled trial found 15 minutes of 670 nm red light on the upper back cut glucose spikes by 28 percent. Here is the mechanism and how to use it.

Two landmark studies reveal that blood cells silently replace the brain's immune cells after age 50, reshaping how we think about Alzheimer's.

A geriatrician explains why power training, smart bone medication choices, and fall prevention matter more than trendy longevity supplements.

Learning science shows why mastering basics, spaced repetition, and motivation let students learn several times faster than in a typical classroom.

Functional medicine research links leaky gut and microbiome imbalances to ADHD, and shows how diet and gut repair can improve focus.

Neuroscientist Richard Davidson on pairing meditation with exercise, the four pillars of well-being, and why 5 minutes a day for 28 days changes your biology.