ScienceInsights

Red dots on your arm can stem from several causes, from harmless cherry angiomas to heat rash. Learn what each one looks like and when to see a doctor.

Survival time for cats with untreated cancer depends on the type and how fast it grows. Here's what to realistically expect and how to keep your cat comfortable.

A 102/68 blood pressure is generally healthy, but context matters. Learn when low-normal readings are fine and when they might signal something worth checking.

Learn what to expect from a bone density test, how to read your T-score, and whether a scan might be right for you.

Peeing every hour can stem from what you drink, a UTI, or something like diabetes. Learn common causes and when it's worth seeing a doctor.

Learn how to recognize a torn ACL, from the telltale pop and swelling to knee instability, and what to expect if the injury goes untreated.

Liver cleanses are a myth, but your diet and habits genuinely affect liver health. Here's what the science says actually helps.

Dexamethasone can start working in as little as an hour or take a few days, depending on the condition being treated and how it's given.

Constant bloating after every meal usually has a cause—from slow digestion to gut bacteria. Here's how to start identifying what's going on.

Many STIs cause no obvious symptoms in women, making regular screening essential. Learn what signs to watch for and when and how to get tested.