ScienceInsights

Certain nutrients like zinc, selenium, and omega-3s play a real role in sperm health. Here's what the science says about eating for better sperm quality.

Sore gums can have many causes, from gum disease and abscesses to hormonal shifts and certain medications. Here's how to tell them apart.

Plasma does more than carry blood cells. Learn how it transports nutrients, supports clotting, fights infection, and keeps your body in balance.

From the common cold to pneumonia, learn how different respiratory infections affect your body and how to tell viral from bacterial causes.

Sore muscles after a workout? Learn what actually helps you recover faster, from protein and sleep to heat, cold, and a few supplements worth trying.

Taking melatonin 30 to 90 minutes before bed works best for most people, but your ideal timing depends on your dose and sleep goal.

Your stool's color, shape, and frequency can reveal a lot about your digestive health. Here's what to look for and when to see a doctor.

Your body clock resists sudden changes, but light, meals, and a few small habits can genuinely shift when you feel sleepy at night.

A few simple steps before your mammogram can make the experience more comfortable and your results more accurate.

True photographic memory likely doesn't exist. Here's what science says about eidetic memory and why so many people believe they have it.