Actually, You Can Catch Up on Sleep

The findings come from an analysis of nearly 91,000 people enrolled in the UK Biobank project, a large-scale biomedical database. People reported how much sleep they got per night, and those averaging fewer than seven hours—about 22% of the sample group—were considered sleep-deprived. People in the study briefly wore sleep-tracking devices that allowed the investigators to measure how much additional sleep they got over the weekend. The researchers then followed up on participants’ cardiovascular health 14 years later.