First of all, you should know that supplementing water is to make the body exercise better. It is unfounded that not drinking water can improve physical strength, but it will adapt to the dehydrated environment a little later when exercising. While exercising, you should still drink water properly. You should also know that you can't drink too much water during exercise, because it will be uncomfortable for water to shake in your stomach, which is not good for your stomach and will cause gastroptosis.