Even naps are beneficial, according to a Harvard study in which subjects who took a 90-minute snooze after learning a task performed 50 percent better over a 24-hour period than the napless group.
And, in the months after the surrender, the deep soft nap began to show signs of wear and finally the heavy warp and woof showed through in spots where heels had worn it and spurs dug carelessly.
A good study program should not only include exercise, short intense study sessions, and social learning, it should also include a good night's sleep and perhaps, if your day allows it, a cheeky power nap in the afternoon.