Caffeine Cutoff Time, 100 mg vs 400 mg Changes the Answer
Caffeine cutoff time: 100 mg at 4 h had no effect in a 2025 trial, 400 mg hurt sleep at 12 h.
Lifestyle
Sauna Benefits, What the Finnish Heart Study Can’t Prove
Sauna benefits look huge in Finnish data, with 63% lower sudden cardiac death risk, but it’s observational. Here’s what new mental health trials add.
Zone 2 Training, Why the Longevity Hype Is Overstated
A 2025 review found zone 2 training isn’t uniquely better for mitochondrial health than higher-intensity exercise. Here’s what the evidence actually shows.
Creatine for Women, Why the “Bulky” Myth Is Wrong
Creatine for women is surging in searches as new research debunks the bulky myth. Here’s what the 2026 CONCRET-MENOPA trial and other studies actually show.
The Wolverine Peptide, What BPC-157 Actually Does
Search interest in the ‘Wolverine peptide’ jumped over 3,000% in 2026. BPC-157 and TB-500 aren’t FDA-approved. Here’s what the evidence actually shows.
Compression Boots, Do They Actually Speed Recovery?
Compression boots have moderate evidence for reducing DOMS, but weak evidence for real performance recovery. Here’s what the research actually shows.
Exercise for Weight Loss Just Hit #3, for a Reason Nobody Expected
ACSM’s 2026 survey renamed Exercise for Weight Loss to Exercise for Weight Management as GLP-1 use rises. Here’s the real shift, backed by data.
Nicotine-Free Vapes Aren’t Safe, Here’s What’s Still in the Vapor
Nicotine-free vapes still produce formaldehyde, diacetyl, and heavy metals. Cleveland Clinic and FDA: removing nicotine doesn’t remove vapor risk.
That Lump in Your Throat Isn’t Anxiety, It Might Be Silent GERD
Silent GERD (LPR) causes no heartburn. Globus sensation, chronic cough, hoarseness — 5 signs your throat is sending that most people miss entirely.
Carbohydrate Quality Predicts How You Age, Here’s What Harvard Found
Carbohydrate quality, not quantity, determines how you age. JAMA 2025, 47,513 women, 30 years — high-quality carbs raise healthy aging odds by up to 37%.