The most scientific way to run on the treadmill is to run at variable speed. Walk slowly for 3-5 minutes, and then walk fast for 3-5 minutes. The whole walking process should be controlled at 10- 15 minutes. Then there is running, and the speed of running is also from slow to fast and then to slow. This process lasts 15 minutes, and basically the whole running process lasts 30-40 minutes. It's best to do some relaxation activities after running, such as waist-beautifying machine and waist-twisting disc attached to the treadmill, which can all play a relaxing role. Boys can do some strength training besides running, and girls can do some yoga and dancing.