ScienceInsights

Dermatographia causes raised, red lines to appear when skin is lightly scratched. Here's what those marks look like and why your skin reacts that way.

Bumpy scars form when healing goes into overdrive. Learn the difference between hypertrophic scars and keloids, and what you can do about them.

Blood sugar drops can happen for several reasons, from skipping meals to exercise. Learn what causes them and what to do when it happens.

The Strange Situation is a classic psychology experiment that reveals how infants bond with caregivers and what those early attachment styles mean for development.

Learn how to safely bathe your newborn, from sponge baths to the tub, including cord stump care and the right products for delicate skin.

Raw sushi can be a nutritious meal, but mercury, sodium, and hidden calories vary more than you'd expect. Here's how to order smarter.

From ibuprofen and heat pads to magnesium and acupressure, here are the period cramp remedies that actually have evidence behind them.

Kidney disease often develops quietly. Learn which symptoms to watch for, from fatigue and swelling to skin changes, and how it's caught early.

Erosive gastropathy happens when the stomach lining wears down, causing pain and bleeding. Learn what triggers it, how it's diagnosed, and how it heals.

Keto diarrhea is common and usually temporary. Learn what's causing it—from fat intake to gut changes—and simple ways to ease the transition.