Aging significantly impacts the immune system, notably through the involution of the thymus, which reduces T cell production. This decline weakens immune responses, making older adults more ...

Humans do not always age biologically at the same rate as their chronological age. Faster biological aging compared to chronological age has been linked to higher risks of disease and mortality.

Deb Hipp is a freelance health and medical writer and editor who lives in Kansas City, Missouri. She is a former investigative reporter with more than 25 years of experience as a journalist and writer ...

The brain has five major structural phases during the human lifespan and doesn't reach adulthood until age 32, a new study suggests. Scientists determined that brain development is defined by four ...

Understanding the stages of aging may help you make important decisions about your health and aging well. Aging is a natural experience that lasts a lifetime. It’s a biological process that involves ...

Toyoake, Japan —October 27, 2025— In a groundbreaking study, researchers at Fujita Health University and the Tokyo Metropolitan Institute of Medical Science have uncovered a previously overlooked form ...

Friends enjoy a Valentine’s Day celebration at a Los Angeles senior center on Feb. 13, 2025. (Juliana Yamada/Los Angeles Times via Getty Images) About this research This Pew Research Center report ...

Using transformer-based AI, scientists created a full life-cycle biological clock that predicts future disease risk and uncovers the separate biological rhythms of growth and aging. Study: A full life ...