The best time for human activities should be from 3 pm to 8 pm. Friends who want to improve their skipping skills should not do it during this time. I personally don't advocate morning exercise. Some people "smell chickens and dance" in the morning, even get up at three or four o'clock to exercise, and then go back to sleep.

"Sleeping in the cage" is not only susceptible to air pollution, but also makes the biological clock disorder, leading to fatigue and premature aging.

Because the ground air pollution is the most serious before sunrise, there is less oxygen at this time. After sunrise, green plants begin to photosynthesis, inhale carbon dioxide, spit out oxygen, and the air begins to be fresh. So don't jump rope after sunrise if you have time.

Skipping rope should not be less than 4 times but not more than 6 times a week. You usually need a day's rest and thinking, so that you can improve faster. Each jump time is controlled between half an hour and two hours. Too little can't get the effect of fitness, and overtraining for more than two hours will make the body extremely tired.