Hula hoop is a simple waist exercise, with little exercise, which can't achieve the effect of slimming or shaping the whole body. If the time is too long, the amplitude is too large, and the hula hoop is too heavy, it is likely to cause a sudden change in the pressure in the spinal canal, leading to the rupture of blood vessels. It is suggested to turn the hula hoop half an hour before meals and 1 hour after meals for about 20 minutes each time. A slight abdominal massage after hula hoop helps to burn fat. Avoid exercise during pregnancy and menstrual period. If you want to lose weight and shape, it is better to do yoga. This is my personal suggestion, I hope it will help you!