ScienceInsights

Learn how to check your pulse by hand or with a device, and what your resting and max heart rate numbers actually mean for your health.

Athlete's foot is caused by a common fungus that thrives in warm, moist environments. Learn why it spreads easily and what makes it so likely to return.

From guaifenesin to steam and honey, here's what actually helps break up mucus and when to see a doctor.

No shortcut sobering you up faster — your liver sets the pace. Here's what actually helps you feel better while you wait.

Large period clots can be normal, but they sometimes signal fibroids, hormonal imbalances, or other conditions worth discussing with your doctor.

Most baby coughs are caused by common colds, but some sounds and symptoms signal it's time to call your doctor. Here's what to watch for.

LASIK typically costs $2,000–$3,000 per eye, but the final price depends on your prescription, technology used, and what's bundled in. Here's what to expect.

Stage 4 survival rates vary widely by cancer type, and new treatments are shifting the odds. Here's what the numbers actually mean for patients.

Red gums can often be calmed at home with saltwater rinses, better brushing habits, and a few dietary tweaks — here's what actually helps.