ScienceInsights

Alcohol affects your brain in more ways than you might expect, from blackouts to long-term shrinkage — and some of the damage can be reversed after quitting.

Internal styes are trickier than regular styes, but warm compresses and good hygiene can help. Learn when home care works and when to see a doctor.

Learn to recognize the physical and emotional signs your period is on its way, from cramps and discharge changes to mood shifts and tracking tips.

Simple, science-backed habits like walking after meals, staying hydrated, and managing stress can help bring your blood sugar down naturally.

Type 2 diabetes can go into remission for some people. Here's what the evidence says about weight loss, diet, exercise, and other approaches that help.

From ginger to pressure points, here are the nausea remedies that actually have evidence behind them — and when to see a doctor.

Most 5-year-olds fall between 40–45 inches tall, but normal varies widely. Learn what shapes your child's height and when to check with a doctor.

Most people are contagious with the flu for about 5–7 days, but the window varies by age, immune health, and treatment. Here's what to know.

Strep and a sore throat can feel similar, but key differences in symptoms help you know when to get tested and treated.

Morning sickness typically starts around week 6 of pregnancy. Learn when nausea usually begins, why it happens, and when to talk to your doctor.