ScienceInsights

Postpartum contractions are normal, but they can catch new moms off guard. Here's what to expect and when to call your doctor.

Not sure if you're balding or just shedding more than usual? Learn how to tell the difference and what early hair loss actually looks like.

75 mg of caffeine is moderate for most adults, but age, pregnancy, and genetics change how your body handles even this modest amount.

About half of long-term smokers die from smoking-related causes, losing around 10 years of life on average. Here's what the evidence shows.

Heart holes can stem from genetics, pregnancy exposures, or even a heart attack. Learn what causes them and when treatment is needed.

Tingling hands and feet can stem from diabetes, B12 deficiency, nerve compression, or something temporary. Here's what's likely causing yours.

Foot pain can come from many different causes depending on where it hurts. Learn what's likely behind your symptoms and when to see a doctor.

Struggling to sleep? Learn what's really keeping you awake—from stress and habits to medical causes—and what you can do to actually get some rest.

Avocado can support weight loss when eaten in the right amounts. Learn practical portions and meal ideas to make it work for you.

Steak is rich in heme iron, which your body absorbs more easily than plant-based iron. Here's what that means for meeting your daily needs.