Sipping is better. Swallowing water too fast and too hard will inevitably swallow a lot of air together, which will easily lead to burping or bloating, especially on an empty stomach. Therefore, it is best to put water in your mouth first, and then drink it slowly, especially for people with weak stomach and intestines.

If you drink a lot of water, you don't drink it. Remember to sip. No matter how much you sweat, you should drink water bit by bit, because if you drink too much water at a time, your kidneys will receive a signal of excessive water intake, which will speed up urination. On the contrary, the water you drink will be lost immediately and there is not enough time to send it to all parts of your body.