Most people assume aging happens slowly over time, one wrinkle or ache at a time. However, researchers now say the body may actually go through two major “bursts” of aging that feel far more sudden and noticeable. Doctors and scientists studying biological aging have identified the mid-40s and early 60s as two periods when the body experiences significant molecular and physical shifts. That may explain why some people suddenly notice weight gain, lower energy, aching joints, worsening sleep, or slower recovery seemingly overnight. Here’s what you need to know.
