On the seventh floor, according to the height of each floor, the heat consumption per trip (up and down) is about 1 10 kilojoules, about 26 calories, and the human body metabolizes 1200 calories every day. Eat 1600 calories a day, you have to go up and down 20 times to balance it, and you can lose weight more than 20 times. Ha ha. Actually, climbing stairs is not a good way to lose weight. It can only be used as an aid, such as going up and down the stairs once.