by Shaun Dreisbach
And if you want to stop after that, give yourself permission. You probably won't: It takes only about six minutes for the feel-good hormones of exercise to kick in, says Wayne Westcott, a fitness researcher and instructor of exercise science at Quincy College in Massachusetts. And if you do throw in the towel? Seven minutes is better than nothing.
Listen to your exercise playlist before exercising.
Cranking the tunes you work out to pre-workout will get you into the right head space, says Kristin McGee, a trainer in New York City. "They create an almost Pavlovian response," says McGee. "You hear them and you know it's time to sweat."
Work out with someone who is 40 percent more fit than you are.
Women in a Kansas State University