ScienceInsights

Back dimples are small indentations above the lower back, shaped by genetics and anatomy. Here's what causes them and what science says about health claims.

Melatonin won't cause physical addiction, but psychological reliance and inconsistent dosing are worth knowing about before you reach for the bottle.

Sever's disease causes heel pain in active kids and teens, but it's treatable and temporary. Here's what parents and young athletes need to know.

Vaping and smoking are treated differently by laws, doctors, and insurers. Here's what that means for you in practical terms.

Nerve flossing uses gentle movements to mobilize irritated nerves, easing pain from sciatica and similar conditions. Here's how it works and how to try it.

Lymphedema treatment ranges from massage and compression to surgery. Learn what actually works, what doesn't, and how to manage this condition long-term.

PSP is a rare brain disease often mistaken for Parkinson's. Learn how it affects movement and balance, its two main forms, and what living with it looks like.

Valley fever isn't contagious between people. Learn how this fungal infection actually spreads, what symptoms to watch for, and how to lower your risk.

Learn how doctors diagnose osteoporosis using DXA scans, T-scores, FRAX calculators, and blood tests to assess your bone health and fracture risk.

Self-confidence is more than a feeling — learn what it actually is, where it comes from, and what the science says about building it.