How to master the power nap

Oli Scarff/Getty Images There was always something unacceptable about it, wasn’t there? To see someone kick back their feet and close their eyes for a brief spell seemed to hint at a deeper flaw. Why would people need to power down for twenty minutes in the middle of the day if they were making good choices at night? They must be sick. Or hungover. Or, worst of all, lazy. But things have changed. Napping now commands the same reverence as meditation or green juice: a healthy practice that not ...