Walking 500 meters every day for a long time can not only promote defecation, but also prevent rectal cancer. According to statistics, the incidence of constipation in young and middle-aged people is 1%-5%, and that in the elderly is 5%-30%. When people get older, their appetite and activity decrease obviously, intestinal peristalsis slows down, and intestinal water decreases, which is more likely to lead to constipation. Qi Hongmei, director of the rehabilitation department of Tianjin First Hospital, told reporters that more exercise is a good way to improve constipation. Studies have shown that if you walk 500 meters a day, you can greatly reduce the risk of constipation in the elderly. Walking every word is also called catwalk, similar to walking posture, a model on the runway. When walking, your left and right feet should step on the center line between your feet in turn. The specific walking method is: step forward with your left foot, step on the center line of your foot, twist your hips to the left while landing on the sole of your foot, and keep your upper body relaxed; When your left foot is firmly established, lift your right foot and take a step forward. The method is the same as above, and the legs take turns. This kind of walking will form a certain degree of hip twisting, which is helpful to improve pelvic blood circulation, enhance waist strength, effectively stimulate internal organs, especially promote gastrointestinal peristalsis, which is equivalent to massaging organs such as liver, stomach and intestine, and can promote the absorption of nutrients and the discharge of waste, which has a good effect on preventing constipation. Walking 500 meters every day for a long time can not only promote defecation, but also prevent rectal cancer. Of course, the specific amount of exercise depends on the physical condition of the individual. Old people who are weak should be careful not to overdo it, and don't feel tired if they sweat slightly. Also choose places with relatively flat ground, such as squares and stadiums, and don't exercise in crowded places. Because you have the action of swinging your hips and twisting your hips when you walk, you should relax when you walk, but don't be absent-minded to avoid spraining your ankle.