ScienceInsights

A calorie deficit means burning more than you eat, but your body adapts in ways that make weight loss more complex than simple math.

Intrusive thoughts are surprisingly common and usually harmless. Learn why they happen, when to seek help, and what actually works to manage them.

Plan B can prevent pregnancy after unprotected sex, but knowing how it works, its limits, and side effects helps you use it confidently.

Parkinson's likely results from a mix of genes, environment, and aging. Here's what researchers know about the causes and risk factors so far.

IVF costs vary widely, but understanding what drives the price helps you plan smarter and find real ways to save.

Learn how to meditate with proper posture, simple techniques, and realistic habits that actually stick, plus what it does to your brain over time.

A fistula is an abnormal connection between two body parts. Learn what causes them, how they're treated, and what to expect from recovery.

Sickle cell disease causes misshapen red blood cells that block blood flow, leading to pain and organ damage. Learn how it's inherited, diagnosed, and treated.

Learn how CBD affects your body, what the research says about anxiety, sleep, and inflammation, and what side effects and drug interactions to watch for.

Snoring has real causes and real health consequences. Learn what's happening in your airway, who's most at risk, and when it signals something serious.