ScienceInsights

Polymyositis is an autoimmune disease where the immune system attacks muscle tissue. Learn about its symptoms, diagnosis, and treatment options.

Sweat rash is uncomfortable but usually clears up quickly with the right care. Learn what causes it and how to treat and prevent it at home.

Learn how compression clothing applies graduated pressure to improve circulation, who can benefit from it, and how to find the right fit.

Simple, evidence-backed habits that can help you get more deep sleep, from room temperature and caffeine timing to light exposure and consistent schedules.

Old memories aren't always gone — scent, context, and sleep can help you retrieve ones you thought you'd forgotten for good.

Sinus bradycardia isn't always a problem. Learn when a slow heart rate is perfectly normal and when it signals something worth treating.

Managing bipolar disorder takes more than medication. Learn how sleep, therapy, lifestyle choices, and crisis planning work together for better stability.

Recovering from a concussion? Learn what to avoid, from screens and caffeine to certain pain relievers, to heal safely and effectively.

Broken blood vessels can appear from sun damage, aging, or physical strain. Learn what's behind them and when they might signal something worth checking out.

Learn how the small bowel digests food, absorbs nutrients, and what happens when things go wrong with this remarkable stretch of your digestive tract.