Human movement consumes the body's energy, and heat is generated in the process of energy conversion. Sweating can take away the body's heat to balance the body's function. The more heat generated during exercise, the more water is needed to dissipate heat and cool down. But where does the water come from? Generally, it is produced by direct intake (drinking water) and food intake, as well as when starch and lipids are catabolized. When you sweat a lot, the water in your body will decrease. If you don't drink water, you need to decompose to produce water, which explains the problem of sweating a lot to lose weight.

But sweating may not be able to lose weight. Only when the water in the body needs to be decomposed by substances can we achieve the effect of losing weight. If you sweat a lot in a short time, you will feel thirsty and hungry, and then immediately replenish water and food, so that you will not lose weight but gain weight, which shows that you need long-term exercise (usually after 1 hour) to lose weight effectively!