ScienceInsights

Most spider bites heal on their own, but some need medical care. Learn what to do right after a bite and when to see a doctor.

Walking 10,000 steps a day can improve heart health, blood sugar, and mood — but is that number actually necessary? Here's what the science says.

Going without sleep has real consequences that build quickly. Here's what happens to your body and brain the longer you stay awake.

Healthy body fat percentages vary by age and sex. Here's what the ranges actually mean and how to make sense of your own numbers.

Science-backed strategies for losing fat, from calorie deficits and strength training to sleep, stress, and realistic timelines for results.

From salt water gargles to honey and OTC options, here are practical ways to ease a sore throat and know when to see a doctor.

Soft foods, no straws, and the right temperatures can make day two after wisdom teeth removal much more comfortable. Here's what to eat and avoid.

Neck pain keeping you up? Learn which sleep positions and pillows help, and which habits might be making things worse.

Baby weight gain varies by age and feeding type. Here's what's typical each month and when to talk to your pediatrician.

That dizzy feeling when you stand up is usually orthostatic hypotension—a brief blood pressure drop. Learn what causes it and how to manage it.