Bells, dumbbells, abdominal chakras, you can't practice when you are young. It is best to control the exercise time of abdominal chakra at 10-30 minutes per day, that is, the rest time between exercises of each group should not be too long, and the rest time between groups should be kept within 2 minutes. The best time is around 17- 19 in the afternoon. At this time, the muscle function of the human body is the best and the exercise ability reaches its peak. Better results can be obtained by using abdominal wheels.