The body’s cells respond to stress—toxins, mutations, starvation or other assaults—by pausing normal functions to focus on conserving energy, repairing damaged components and boosting defenses. If the ...

Aging does not arrive all at once. It builds quietly across years, touching cells long before symptoms appear.

Scientists have uncovered a surprisingly simple “tissue code”: five rules that choreograph when, where, and how cells divide, move, and die, allowing organs like the colon to remain flawlessly ...