Over-the-hill cells may cause trouble in the aging brain

Killing senescent cells in the noggins of mice prevented memory loss

tau tangles in a nerve cell illustration

TANGLED UP  Senescent brain cells that no longer do their jobs properly may have a hand in creating tangles of tau (illustrated in blue inside a nerve cell) and, ultimately, dementia, a mouse study suggests.

UT Southwestern

Cells past their prime may have a role in dementia.