Exercise Excuse No. 2: “I’m Too Tired.”

It may sound counterintuitive, but working out actually gives you more energy, says Marisa Brunett, a certified athletic trainer in Orlando, Fla. Once you get moving, your fatigue will likely disappear.

“You’re getting the endorphins [feel-good hormones in your body] to release,” says Brunett. “And you’re getting the circulation going — as opposed to coming home and crashing on the couch.”

It may help to work out in the morning before you get wiped out by a demanding workday, says kinesiologist Lynette Craft, PhD, assistant professor of preventive medicine at Northwestern University.

But if you’re just not a morning person, don’t worry. Brunett, who likes to work out in the middle or at the end of the day herself, recommends doing it whenever you feel best.