Aging & Longevity
Aging biology, lifespan heritability, and longevity debates.
Clear, practical health guides
Evidence-based content on metabolic health, chronic disease, and everyday health decisions — no fluff, no sensationalism.
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Infectious Diseases
Outbreaks, vaccines, and practical infectious disease guidance.
Mental Health
Anxiety, depression, ADHD, sleep, and evidence-based care.
Brain Health
Stroke, TIA, dementia, and brain health prevention.
Latest Posts
Hib Was Supposed to Be Gone. It Isn't.
CDC surveillance data shows why "solved" diseases can quietly return.
Delirium vs Dementia in Hospital: What Families Miss
Sudden confusion in hospital is often misinterpreted. Here's how delirium differs from dementia — and why it matters.
Early Signs of Dementia People Ignore (and When It's Not Dementia)
Subtle early signs of dementia are often missed or misinterpreted. Here's what to look for — and when it might be something else.
When Memory Problems Aren't Dementia: The Conditions That Mimic Cognitive Decline
Not all memory problems are dementia. Here are the common conditions that can mimic cognitive decline — and how to tell the difference.
Why Poor Sleep Can Feel Like Cognitive Decline
Poor sleep can affect memory, attention, and thinking — sometimes in ways that feel like cognitive decline. Here's what's actually happening.
Latest Guides
Recently updated health guides
Aging and Longevity Basics
A plain-language overview of what aging is, what longevity means, and what actually changes in the body over time.
Bone Density and Osteoporosis: What You Need to Know
How bone density changes with age, what osteoporosis is, how fracture risk is assessed, and what treatments are supported by evidence.
Collagen Supplements for Skin: What the Evidence Actually Shows
A medical guide to oral collagen supplements, how they are digested and absorbed, what the evidence shows for skin outcomes, and how they differ from topical collagen products.
Haemophilus influenzae type b (Hib): Infection, Symptoms, and Vaccination
A clear guide to Hib infection, symptoms, complications, and how vaccination protects against serious disease.
Longevity Lifestyle Basics: Sleep, Diet, and Exercise
An evidence-based overview of the lifestyle factors most consistently associated with longer healthspan and reduced chronic disease risk.
Retinoids for Skin Aging: Retinol, Tretinoin, and the Evidence
A medical guide to retinoids, covering how they work, the differences between prescription and over-the-counter forms, what the evidence shows, and how to use them.
Sarcopenia: Age-Related Muscle Loss Explained
What sarcopenia is, why muscle mass declines with age, and the evidence-based strategies for preventing and managing it.
Skin Aging: Causes, Prevention, and Evidence-Based Treatments
A medical overview of skin aging, covering intrinsic vs extrinsic aging, the role of UV exposure, collagen and elastin loss, and what the evidence supports for prevention and treatment.