ScienceInsights

Sore or swollen gums can have several causes, from brushing too hard to infection. Here's how to find relief at home and when to see a dentist.

Most adults get 1–2 hours of deep sleep per night. Learn what's normal, why it matters, and how to get more of it.

Home sleep studies typically cost $150–$500, but insurance often covers most of it. Here's what to expect for out-of-pocket costs and how the process works.

Tea tree oil leads the pack for treating toenail fungus, but results take months and some infections need a doctor's care.

From home remedies to clinical treatments, here's how to find knee pain relief and when to seek medical care.

Learn how regular repositioning, the right support surfaces, and good skin care can help prevent pressure sores on the buttocks.

A burning sensation after peeing can stem from UTIs, STIs, irritants, or hormonal changes. Learn what's likely causing yours and when to see a doctor.

Frequent urination can stem from many causes, from too much coffee to diabetes. Here's how to tell what's behind it and when to see a doctor.

Simple, evidence-based habits like walking after meals, better sleep, and staying hydrated can meaningfully lower your blood glucose levels.