blog postsAbout 30% of adults don't enough sleep for optimal health. Optimistimism could help.Aug 9, 2019 4:15 pm by Medical News TodayIllinois in the NewsShare on FacebookTweetEmailImagesIllinois professor Rosalba Hernandez finds that optimists tend to sleep better, building on previous studies that suggested optimists have better cardiovascular health.Share on FacebookTweetEmail