KNTV NBC Nightly News With Lester Holt March 8, 2022 02:50:00
(chiming) ( ♪♪ ) (laughter) ( ♪♪ ) some striking new findings about covid british investigators found even mild cases are associated with brain tissue damage, accelerated losses in regions tied to smell, a deficit of cognitive function, and faster brain aging. all of it at least in the first few months after infection. new york city today lifted its mask mandate for schools. they're now optional as the covid threat eases once again, what does the future hold for our series "the