People sweat when they are hot. Sweat is 99% water except a little salt and urea. When the body produces more heat than it emits, the body temperature will rise, and the temperature receptors inside and outside the body will transfer the temperature change to the hypothalamus, the body's thermoregulatory center. Hypothalamus can stimulate sympathetic nerve, increase skin blood flow, increase sweat gland secretion, and take away excess heat by sweat evaporation, thus maintaining body temperature balance. What you lose by sweating at high temperature is only the water on your body, and it doesn't make any sense to lose the weight figure on the weighing scale. This change is only temporary. As long as you replenish water in time, your weight will soon pick up.
So sweating at high temperature has no effect on weight loss. This is a wrong way to lose weight. Don't insist. If the high temperature causes excessive sweating, it is necessary to replenish water in time. Failure to replenish water and salt in time will lead to imbalance of body temperature and neuroendocrine disorder, resulting in heatstroke, dehydration and other situations requiring medical intervention. In severe cases, it may even lead to organ failure and life-threatening.