ScienceInsights

Prostate cancer radiation ranges from 5 to 45 sessions depending on the technique used and your individual situation. Here's what shapes that number.

Most adults need 90–120 minutes of REM sleep per night. Learn what affects it, why it matters, and simple ways to get enough.

Not all pink eye is the same. Learn how bacterial, viral, and allergic conjunctivitis differ and when your symptoms may need medical attention.

Men die by suicide at nearly 4x the rate of women. Here's what the data shows about who's most at risk and the reasons behind the gender gap.

Body aches can have several causes, and relief depends on treating the right one. Here's what actually helps, from hydration to heat to knowing when to see a doctor.

Apples contain around 19g of sugar, but fiber and nutrients change how your body processes it compared to other sweet foods.

Lower stomach pain in women can stem from many causes, from period cramps to ovarian cysts. Learn what might be behind your symptoms and when to see a doctor.

Most colds clear up in 7–10 days, but symptoms follow a predictable pattern. Learn what to expect each day and when to see a doctor.

A heart cath itself takes under an hour, but your full hospital visit often runs 4–8 hours once prep and recovery are factored in.

Tramadol treats moderate pain but carries real risks like seizures and serotonin syndrome. Learn who it helps, who should avoid it, and how it compares to alternatives.