ScienceInsights

Cardiac ablation is generally safe, but risks vary by technique, age, and where you have it done. Here's what the complication rates actually show.

From grades to global news, teens carry real worries. Learn what's driving teen anxiety today and how to tell when it's time to seek support.

The "8 glasses a day" rule isn't quite right for everyone. Here's how to figure out how much water you actually need.

A metallic taste in your mouth can come from vitamins, medications, illness, or oral health issues. Learn what's behind it and how to get relief.

From salt intake and counterpressure moves to medications and pacemakers, here's how vasovagal syncope is managed based on how often you faint.

Post-sex itching can stem from friction, pH changes, allergies, or infections. Learn the common causes and how to find relief.

Leukemia starts with DNA mutations in blood cells. Learn what causes those mutations, how they spread, and why some types grow faster than others.

Wagyu beef has a unique fat profile that sets it apart from regular beef. Here's what the nutrition science says about its health effects.

Learn how the Widmark formula estimates blood alcohol content, why results vary by sex and body composition, and what affects your BAC beyond the math.

Health experts recommend breastfeeding for at least a year, but the right duration varies by family. Here's what the research and guidelines actually say.