Cognition improving among nonagenarians

Drawing on a Danish database, researchers compared a cohort of nonagenarians born in 1915 with a cohort born in 1905, finding them more nimble mentally and physically.

Those born later had less mental impairment, better fluency and recall ability, even when adjusted for their improved education compared to the earlier cohort.

They also had better command of daily living tasks, such as walking inside and outside.

In a linked comment, experts said the findings challenged extrapolations about the likely future burden of