90s-born may age faster and face higher cancer risk, study shows

A new study finds people born in the 1990s have a larger gap between biological age and chronological age than those born earlier, especially men, suggesting accelerated aging that correlates with a higher risk of early-onset cancers (lung, colorectal, uterine, and more). Cancer in people under 50 rose 24% from 1990 to 2019, with colorectal cancers diagnosed before 55 increasing in the US from 11% to 20% of cases. Possible contributors include earlier puberty and rising obesity, diabetes and related factors; researchers note aging can vary by organ and environment and that more work is needed to pin down causes and prevention.