Junxin Li, PhD, Center for Sleep and Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia. coauthor of the study “Afternoon Napping and Cognition in Chinese Older Adults: Finding from the China Health and Retirement Longitudinal Study Baseline Assessment,” published in Journal of the American Geriatrics Society.
Afternoon naps are no longer guilty pleasures. New research finds that a postlunch snooze, if it's not too long, is…