Rather than aging being a gradual process, the human body actually experiences two dramatic bursts of aging at a molecular level, according to a new study. The study — published Aug. 14 in the journal ...

While the human body doesn’t replace itself every seven years in a uniform way, it does engage in constant renewal.

Share on Pinterest The human body experiences rapid changes around age 50, according to a new study. Maskot/Getty Images Past studies show that human aging doesn’t necessarily happen at the same pace ...

Exclusive: Some scientists say many detections are most likely error, with one high-profile study called a ‘joke’ ...