Don't have time for a full 60-minute workout? Don't sweat it. Divide and conquer. Shorter spurts of exercise, such as 10 minutes of walking spaced throughout the day, offer benefits too. Whether you're trying to lose weight or improve your cardiovascular fitness, the key is to get moving. Take the stairs, walk during your lunch break, and do household chores at a pace fast enough to get your heart pumping. It all adds up!