OK, so maybe you hate to exercise. Lots of people don't have workout fever, and that's OK. But you know that you should be more active, so what's the least amount of exercise you can do to reap the most health benefits? Data shows that a half hour of exercise every day, including cardio and strength training, is best for cardiovascular health - some experts point to jogging at full speed for 3 miles as the perfect cardiovascular workout. But if donning running shoes and shorts isn't your style, then there are other ways to get fit. Going slower doesn't mean you'll lose the race to fitness, so try some of these strategies. Slowing down might burn more calories than keeping up with that marathon runner. Try walking instead of running, jogging instead of sprinting. As long as you raise your heart rate to that target zone where you're still burning calories, then you'll still lose weight.