Doing exercise at home can help you lose weight, because the sun is too bright recently and I don't want to go out to exercise. Do you want to turn on the air conditioner when exercising at home? Personally, I think it is unnecessary. The purpose of exercise is not to sweat, but to gain muscle and reduce fat, be healthy and beautiful, and consume excess calories. Sweating is a normal reflection of the body and a by-product of exercise. Keeping warm helps to burn fat, so sweating is really good, but pay attention to safety and don't get heatstroke.