Whether your goal is to lower your cholesterol, shed some extra pounds, or both, regular exercise can help you get there. One study suggests that walks of any duration may help reduce heart disease risk. For the study, British researchers recruited 56 sedentary people between ages 40 and 66, then divided them into three groups. One group took a long, 20- to 40-minute walk each day; another group walked for 10 to 15 minutes twice a day; and the third group took 5- to 10-minute walks three times a day.
Over the 18 weeks of the study, the once-a-day walkers saw their LDL cholesterol drop by 8.3 percent; the twice-a-day walkers by 5.8 percent. The researchers concluded that walks of any length can be beneficial, as long as they're done at a moderate intensity—that is, a brisk pace at which you can still carry on a conversation.
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