A midday doze doesn’t make you old. It makes you smart. A 2010 City University of New York study found that people who nap have sharper memories. But not just any nap will do: Use our guide to find your sweet spot.
A quick fix: Napping for 10 minutes immediately wards off fatigue and boosts brainpower for at least 2 ½ hours, an Australian study found. A 5-minute nap? No help.
What your sleeping position says about your personality.
Delayed benefits: Doubling down will improve your reaction time and performance on alphanumeric tasks. But not right away—it takes at least 35 minutes to shake off the postnap mental fog from “taking 20.” Continue reading