Author: Tina Hesman Saey

Subtle shifts in how users described symptoms to AI chatbots led to dramatically different, sometimes dangerous medical advice.

A new artificial lung system might keep people without lungs alive for weeks. Like real lungs, tubes and pumps oxygenate blood and maintain blood flow.

The tool helps scientists understand how single-letter mutations and distant DNA regions influence gene activity, shaping health and disease risk.

New U.S. dietary guidelines promote eating full-fat foods and meats. But experts say nuts and seed oils are better sources of the two crucial fats