ScienceInsights

Most lower eyelid styes clear up with warm compresses at home. Learn what helps, when to see a doctor, and how to tell a stye from a chalazion.

Tea tree oil can improve acne in as little as 4–8 weeks. Learn what the research says, how to apply it safely, and how it compares to benzoyl peroxide.

From progesterone to metformin, the right treatment for a late period depends on what's causing it. Here's what doctors typically recommend.

Night sweats are often harmless, but they can sometimes point to hormones, medications, or health conditions worth checking out.

Ozempic works gradually, with appetite changes coming first and blood sugar improvements taking weeks. Here's a realistic timeline of what to expect.

A practical guide to daily vitamin needs, from recommended amounts for all 13 vitamins to safe upper limits and how age or pregnancy can shift your requirements.

Low vitamin D can leave you feeling tired, achy, and low—even when you're doing everything right. Here's what to look for and what to expect.

Type A and Type B personalities originated in heart disease research. Here's what the traits actually mean and why most people don't fit neatly into either category.

For a 5'3 female, healthy weight goes beyond the 107–140 lb BMI range. Body fat, waist size, and age all matter more than the scale alone.

Adult women are often diagnosed with ADHD later in life. Here's how to find the right provider, what to expect, and what comes next.