Nick Castro
@nickcastr0
· Sep 14
Why is cancer rising in adults under 55?Part of the answer may be biological aging — the cellular wear-and-tear you accumulate regardless of birthdays. New research suggests people from more recent generations are aging faster at the biological level, and that may be one piece of the puzzle behind rising early-onset cancer.What happened: Scientists compared biological aging, measured through blood-based markers rather than birthday candles, across generations and found more recent cohorts aging faster than earlier ones. That accelerated aging tracked with higher cancer rates in adults under 55. It doesn't explain everything, but it adds a measurable thread to a trend oncologists have been watching for years.Key numbers: Under 55: the age bracket where cancer rates are climbingBiological aging can run years ahead of chronological ageEarly-onset cancer rates have been rising in multiple countries since the 1990sWhy it matters: If aging speed is partly to blame, then sleep, exercise, and metabolic health stop being vague wellness advice and start looking like cancer prevention.Bottom line: Your birthday isn't the deadline your cells are quietly working toward.
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