Metabolic Health
Weight, insulin resistance, GLP-1s, and cardiometabolic risk.
Clear, practical health guides
Evidence-based content on metabolic health, chronic disease, and everyday health decisions — no fluff, no sensationalism.
Browse All GuidesFeatured Guide Hubs
Curated topic hubs — rotates weekly
Aging & Longevity
Aging biology, lifespan heritability, and longevity debates.
Infectious Diseases
Outbreaks, vaccines, and practical infectious disease guidance.
Neurology
Stroke, TIA, emergency neurology, and brain health.
Latest Posts
Do Collagen Supplements Actually Work? A Review of 113 Clinical Trials
A large scientific review suggests collagen supplements may modestly improve skin hydration and elasticity—but the benefits are often overstated.
AI Guardrails, National Security, and Critical Infrastructure Governance
Why AI guardrails are structural safety systems — not ideological constraints — and why national security pressure is a governance stress test for frontier AI.
Should You Get the Shingles Vaccine at 50 — Or Wait?
A practical timing strategy for healthy adults deciding when to get the shingles vaccine.
What 52% Emergency Under-Triage Really Means
A 2026 Nature Medicine stress test found high emergency under-triage rates in ChatGPT Health. Here’s how to interpret that number responsibly.
High Blood Pressure in 2025: More Than Just Numbers
The new AHA/ACC guideline reframes hypertension — not only as a heart risk, but as a lifelong brain and pregnancy health issue that demands earlier, more personalized treatment.
Latest Guides
Recently updated health guides
Collagen Supplements for Skin: Do They Actually Work?
A science-based guide to collagen supplements, including evidence for skin hydration, elasticity, wrinkles, dosing, and safety.
Retinoids for Skin Aging: Benefits, Risks, and How They Work
A medical guide to retinoids, including tretinoin, retinol, and adapalene. Learn how retinoids improve skin aging, stimulate collagen, and what side effects to expect.
Skin Aging: Causes, Prevention, and Evidence-Based Treatments
A medical overview of skin aging, including why it happens, how lifestyle affects it, and the treatments with the strongest scientific evidence.
Sunscreen: Benefits, SPF Explained, and How It Protects Skin
A medical guide to sunscreen, including how SPF works, how sunscreen prevents skin aging and skin cancer, and how to choose the right sunscreen.
Vitamin C for Skin Health: Benefits, Evidence, and How It Works
A medical guide to vitamin C in skincare, including its antioxidant effects, collagen support, and evidence for improving skin aging and sun damage.
Respiratory Hub — Breathing and Airway Health
Overview of respiratory health conditions — including asthma, COPD, sleep apnoea, shortness of breath, and wheezing.
Vaccination Overview
A clear introduction to vaccines — what they are, how immunity works, schedule logic, benefits and risks, and common misconceptions.
Shingles (Herpes Zoster) and the Vaccine: What Adults Should Know
An evidence-based guide to shingles risk, complications, and vaccine recommendations for adults, including Australian guidance.