Falling levels of a key membrane fat made mitochondria age faster, but restoring it in worms quickly revived their energy networks and metabolic flexibility.  

A brief low‑calorie “fasting‑style” diet lowered inflammation in blood and gums, hinting that what you eat could shape both oral health and long‑term longevity.  

Your brain can keep getting sharper, even in your 80s and 90s, by practicing short brain‑training habits that strengthen thinking skills.

Older adults who kept practicing a new musical instrument in their 70s maintained sharper working memory and healthier brain tissue than those who quit.