In fact, there is a more powerful way that my sister sues me. I got about 18J, and you can live a lifetime (red grapes-slimming method). I hope you can stick to it.
Dieting and detoxification are effective quickly, but they are at the expense of health, and they are easy to rebound, which greatly increases the chance of heart disease. However, if you only exercise for 15 minutes at a time, you will burn sugar, but not fat. After half an hour of exercise, you will start to burn more fat. The longer you exercise, the more fat you burn. This is because the main energy for continuous exercise is fat rather than sugar. On the contrary, the energy of instantaneous explosive exercise is sugar rather than fat, so this kind of exercise is not conducive to fat loss.
Note: for every kilogram of fat cut off, the human body needs to consume 7700 calories. Another way of saying it is 7200 calories. Comrades who love to lose weight, especially young lesbians, please find out for yourself what exercise is the most effective, with the highest safety factor and the least economic investment.