Many people think that sweating can excrete metabolites or toxins from the body, so I think the more you sweat during exercise, the better! However, in fact, the scientific explanation is that sweat actually comes from blood. Sweat contains some blood components. When our body sweats, some water will evaporate, but the solid substances such as protein and amino acids will remain on the skin surface. Due to the action of microorganisms on the skin surface, substances with acid sweat will be produced. This is why some people think that sweat is unclean. ?
In addition, sweating a lot will reduce our body fluids. If you don't replenish water immediately, it will cause blood volume decrease, heart rate increase, sweating rate decrease, heat dissipation ability decrease, body temperature increase, bioelectrolytes disorder and acid-base balance disorder, even dehydration, and even heatstroke in severe cases! Due to dehydration, the burden on the heart is aggravated, the kidneys are damaged, and a large number of electrolytes such as sodium and potassium are lost, which will cause symptoms such as neuromuscular system disorder, muscle weakness and muscle spasm, and the physiological functions of the main organs of the body are affected. Dehydration will reduce exercise ability and cause fatigue. Therefore, it is better to sweat during exercise, but after sweating, you must supplement it immediately. For example, you can drink warm white soup or light salt water.
The amount of sweat is determined by the secretion of sweat glands, and the number of sweat glands is different not only in gender, but also among individuals. People with more sweat glands have relatively increased sweat secretion and naturally sweat more during exercise. The amount of body fluids also determines the amount of sweating. People with more body fluids sweat less than those who exercise. It is said that some people have good metabolic function. After exercise, you can speed up your metabolism, but naturally you will sweat too much, expel toxins from your body and emit heat. Do the same exercise. Generally speaking, heavy people sweat more than light people. Obese people have a lot of fat, but the thermal conductivity of fat is poor, so it is difficult to dissipate the heat generated by metabolism in the body, so it is necessary to dissipate the heat in the body through sweating. In addition, if people with heavy weight do exercise, resistance will increase, exercise intensity will naturally increase, and sweating will also increase.