Heat and cold are stressors, and like any stressor, they follow a dose-response curve — a little makes you stronger, too much just breaks you down. Most people treat cold...

Discover Dr. Rajani Katta's inside-out approach to skin aging and the science of glycation. Learn how blood sugar, collagen protection, and anti-inflammatory foods defend your skin from the sugar sag that ages it.

Picture two people having the same rough morning. Both wake up with a tight chest, a racing pulse, and a low hum of dread they can't quite explain. The first...