ScienceInsights

Physical exam validity varies by type—sports and military physicals last a year, while pre-op exams expire within days. Here's what to know for each.

400 mg of magnesium is safe for most people, but your health, supplement form, and medications all affect how much is actually right for you.

Intermittent fasting can help with weight loss, but how well it works depends on your body, schedule, and goals. Here's what the science actually shows.

From chicken soup to ginger, here's what to eat and drink when you're sick to help your body recover faster.

Plan B has no strict usage limit, but frequent use brings more side effects and is less effective than regular birth control options.

Learn the key signs of rosacea, from persistent redness and flushing to eye symptoms, and how to tell it apart from other skin conditions.

Learn what a good breastfeeding latch looks, feels, and sounds like, plus how to fix a shallow latch and tell if your baby is feeding well.

Feeling bloated and gassy? Learn which foods and teas can ease discomfort, what to avoid, and when your symptoms might need a doctor's attention.

Autism now affects 1 in 36 U.S. children. Here's what's behind the rising rate and what the numbers actually mean.

Group B strep is common in pregnancy but manageable. Learn what a positive test means, how it affects your baby, and what to expect during labor.