Lifestyle & Health Halo Thu ,08 2525 1 month ago Last Updated : 09:30 PM Opinion | This new study shows how to keep your brain sharp and reduce dementia risk - The Washington Post Opinion | This new study shows how to keep your brain sharp and reduce dementia risk The Washington Post HALO NEWSLETTER Keep reading HALO with a Free Subscription unlock this story instantly and join members and pros reading HALO daily -It's Free SIGN UP LOGIN