ScienceInsights

Bubonic plague is treatable with antibiotics, but early diagnosis matters. Here's what modern medicine can and can't do against this ancient disease.

Sleeping too much can leave you feeling groggy and may be linked to heart disease, inflammation, and depression. Here's what the research says.

Baking soda can lighten surface stains, but results take weeks and depend on your teeth. Here's what to realistically expect and how to use it safely.

Teething disrupts sleep for the whole family. Learn safe, effective ways to soothe gum pain at night and help your baby rest more comfortably.

Black poop after taking Pepto-Bismol is usually harmless chemistry, but here's how to tell when dark stool might signal something more serious.

Lower abdominal pain after sex is common and has many causes, from a tilted uterus to endometriosis. Learn what might be behind it and when to see a doctor.

400 mg of caffeine is considered safe for most adults, but your genetics, habits, and health status shape how your body actually handles it.

Egg white calories range from 15 to 25 depending on egg size. Here's what you're actually getting nutritionally, plus how cooking affects the numbers.

AIDS has claimed millions of lives since the epidemic began. See the latest global death toll, where deaths are concentrated, and why hundreds of thousands still die each year.

Most adults recover from the flu in 7 to 10 days, but fatigue can linger. Learn what to expect at each stage and what can slow your recovery.