Health & Science September 13, 2023 2:24 pm Study says a sedentary lifestyle can raise dementia risk Researchers found a link between sedentary lifestyles and chronic illnesses that are linked with increased dementia risk. US & World Videos 5:30 Jake Gyllenhaal sings Boyz II Men During ‘SNL' season finale 2:17 Diddy breaks silence on Cassie assault video 2:03 Jennifer Lopez ‘likes' post about relationship issues amid Ben Affleck rumors 6:20 Get ready with Kelly Clarkson fan Q&A 2:19 What Hoda Kotb and Jenna Bush Hager are ‘done' with as moms