ScienceInsights

Research suggests shorter people may live longer on average, but height also affects cancer and heart disease risk in different ways.

Deep sleep needs vary by age, typically ranging from 10–25% of total sleep. Learn what's normal for your age and how to get more of it.

Dulcolax Stool Softener contains docusate sodium, but the evidence for its effectiveness is surprisingly weak. Here's what to know before you buy.

Spinach is a solid source of potassium, but cooking changes the numbers. Learn how much you're actually getting and how well your body absorbs it.

Brown rice has a lower glycemic index than white, but portion size and cooking method may matter more for blood sugar control than the type of rice you choose.

From athlete's foot to nail fungus, learn how to treat common fungal infections and stop them from coming back.

Facial skin peeling can stem from dry air, sunburn, harsh products, or skin conditions. Here's how to figure out what's causing yours.

Learn when to take a pregnancy test for the most accurate result, including how cycle length, test sensitivity, and time of day all play a role.

Chicken wing calories vary a lot depending on skin, sauce, and cooking method. Here's what actually goes into the count.

Revenge bedtime procrastination keeps you up late even when you're tired. Learn practical ways to reclaim your nights and actually get the sleep you need.