Hard workouts-when yo------u're breathing hard and sweating-help your heart work better and ⓐ you more energy. Start with a warm-up that stretches your muscles. ①Try 20 minutes of aerobic activity, ⓑ as running or dancing. ②You don't have to ⓒ up foods that you love to eat. ③You just have to be smart about the amount you eat and when you have some foods. ④If you have a higher-fat food, like pizza, at dinner, choose lower-fat foods at other meals. ⑤Balance your food choices and check what is in the food you eat.