Fasting has been shown to reduce blood pressure, improve cognition, and even reverse chronic disease. But experts say the benefits may not apply to everyone.

The endocannabinoid system is found throughout the brain and body and plays a key role in everything from memory and learning to sleep to social behavior. During prolonged aerobic exercise, the body's ...

Each year, National Geographic highlights a collection of the most compelling images captured by Nat Geo photographers over the past 12 months in their "Pictures of the Year." For 2025, Nat Geo ...