Harvard Health Blog
Sleeping like a caveman?
Posted October 28, 2015, 8:00 am, Updated October 29, 2015, 5:39 pm Stuart Quan, M.D., Contributing Editor Are we sleeping less than our ancestors did? Previous research that examined geographically isolated primitive cultures, as well as other investigations where subjects lived without modern conveniences, suggest that sleep duration has declined with the introduction of artificial lighting and other aspects of modern society. However, a recent study that has attracted public attention has called this