Trends & Research
Is NAD+ IV therapy worth the money?
Longevity clinics charge hundreds to thousands of dollars per drip, but the scientists who study NAD+ say the human evidence for the infusion itself barely exists.
Ages 65 and over
Coverage for people aged 65 and over: mobility, independence, nutrition and the gadgets that make daily life easier.
Research & news
Trends & Research
How long does menopause last?
The textbook answer is about four years, but the symptoms that actually bother people often run two or three times longer than that.
Trends & Research
Menopause belly: what actually changes
A 2026 look at the long-running SWAN study shows visceral fat climbing nearly sixfold through the menopause transition, often with no change in total body weight at all.
Trends & Research
Does your brain really stop changing at 25?
The 'finished at 25' idea traces to teen brain scans that stopped around 20, and researchers say there is nothing magical about the number. Adult brains keep adapting, slowly, and 'rewire it in 21 days' is marketing.
Trends & Research
Can adults grow new brain cells? What the debate shows, and what it doesn't
Two big studies since 2025 say adult humans do make new neurons in the hippocampus. What nobody has shown is how many, whether they matter for memory, or that any supplement or habit boosts them.
Trends & Research
Do infrared saunas actually do anything for your health?
The eye-popping mortality numbers behind sauna's reputation come from traditional Finnish heat, not the infrared cabins selling fast; here's what infrared itself has actually been tested for.
Food & diet
Nutrition & Supplements
Does tart cherry juice actually help you sleep?
Two small, mostly industry-funded trials found real sleep gains from tart cherry juice, but the evidence is thinner than the marketing suggests.
Nutrition & Supplements
Do multivitamins actually work?
The honest answer splits in two: weak evidence for preventing heart disease or cancer in a healthy adult, and a genuinely interesting signal for slowing memory decline after 60.
Nutrition & Supplements
Does zinc actually stop a cold?
A 2024 Cochrane review of 34 trials found daily zinc barely prevents colds, and the shorter-illness claim for treatment rests on shakier evidence than most people assume.
Nutrition & Supplements
How much protein do I need a day? The three numbers that matter
The official figure is a minimum designed to prevent deficiency, not a target. The muscle-building evidence lands at roughly twice it, with a measured ceiling. Over 65, the floor should move up. The real numbers, with the studies behind them.
Nutrition & Supplements
Do menopause supplements actually work?
Black cohosh and its shelf-mates are marketed as a gentler alternative to hormone therapy, but the best evidence says the best-studied one does not beat a placebo.
Nutrition & Supplements
Does spermidine actually work for longevity?
Spermidine is marketed as an anti-aging, autophagy-boosting supplement, but the largest and longest human trial to date found no memory benefit after a year of daily use.
Habits & routines
Fitness & Performance
Does rebounding on a mini trampoline actually work?
Mini trampoline workouts have real evidence behind balance and bone density gains, but the lymphatic drainage claim driving most of the hype traces back to a seven-woman pilot study and a NASA test that never measured lymph at all.
Wellness Travel
How fast can an air ambulance take off? Why that is the wrong question
When someone needs to get home from a hospital abroad, the instinct is to get a plane up now. In medical aviation, speed is really about how fast the whole transport chain can be assembled safely. Medical Air Service's own data and the industry's independent standards show why wheels-up is the wrong number to chase.
Wellness Travel
Do compression socks actually prevent blood clots on long flights?
A Cochrane review of almost 3,000 airline passengers found a large drop in silent blood clots, but the clots that actually cause harm were too rare in the trials to measure.
Mental Wellbeing & Sleep
Is loneliness really as bad as smoking 15 cigarettes a day?
The comparison traces to a 2010 chart about social relationships in general, not loneliness. Loneliness is linked to earlier death, but the link is smaller than the headline implies, and causation is unproven.
Mental Wellbeing & Sleep
Does glycine actually help you sleep?
The amino acid has a devoted TikTok following and a handful of small human trials behind it, but most of that evidence comes from the company that manufactures and sells it.
Fitness & Performance
Grip strength as a longevity test: worth tracking?
A cheap hand squeeze test keeps showing up in longevity research, backed by some of the largest health studies ever run. Here is what the numbers actually predict, and what a weak reading does not tell you.
Gadgets & tech
Wearables & Fitness Tech
Are cuffless blood pressure watches and rings accurate?
The American Heart Association's own December 2025 statement says the smartwatches and rings promising cuff-free blood pressure readings aren't validated enough yet to trust for diagnosis.