The IndependentStudy reveals how many hours sleep to get each night for a healthy heartThe IndependentSix to eight hours sleep a night is most beneficial for the heart - with more or less shut-eye potentially heightening the risk of coronary artery disease or a stroke, researchers have warned. Using data from more than one million adults, scientists ...Finding the sweet spot of a good night's sleep: Not too long and not too shortEurekAlert (press release)all 2 news articles