Write the number оf sentence thаt summаrizes the pаragraph belоw. 1 Walking regularly burns calоries, and this can help maintain a healthy weight in a number of ways. 2 It also improves muscle tone in the legs, the abdomen, and (if you pump your arms as you walk) the arms. 3 It helps the heart by improving blood circulation and lowering blood pressure. 4 In addition, walking releases hormones in your body that can reduce pain and brighten your mood. Furthermore, when you walk places, you are more likely to interact with other people than you are when you drive a car. 6. Walking can be a good way to get to know your neighbors. 7 Walking offers a number of physical, mental, and social benefits.