Longevity & Aging

Accelerated Biological Aging Linked to Rising Early-Onset Cancer in Younger Generations

A major study from Washington University, published in Nature Medicine, found that younger generations show faster biological aging than their parents did at the same age — and this accelerated aging predicts higher rates of early-onset cancer. Using blood biomarker-based aging clocks and data from over 154,000 UK Biobank participants, researchers found each standard deviation increase in biological age gap raised overall early-onset cancer risk by 8%, with lung cancer risk jumping 57%. Organ-specific protein clocks revealed that an aged immune system tracks with lung cancer, while aged fat tissue tracks with colorectal cancer. The findings suggest biological age — not just genetics or lifestyle — is a meaningful driver of why cancers are appearing earlier in life across generations.