Longevity & AgingYale Study Finds Nearly Half of Older Adults Got Sharper or Stronger Over Time
A major Yale study tracking over 11,000 Americans for up to 12 years found that nearly half of adults aged 65 and older actually improved in cognitive function, physical ability, or both. About 32% showed cognitive gains and 28% improved in walking speed — a key health marker linked to mortality risk. Crucially, those who held more positive beliefs about aging at the study's start were significantly more likely to improve, even after controlling for age, sex, education, chronic illness, and depression. The findings challenge the widespread assumption that aging means inevitable decline, suggesting that mindset and expectations around aging may be meaningful levers for health optimization in later life.
