Generally there is no strict sense of warm water, science has no strict definition of warm water, everyone feels the warm water is not necessarily the same temperature. Life is often said to be warm water is judged by the sense of touch, not cold or hot. Drinking lukewarm water of about 40 degrees is appropriate. Drinking warm water is not harmful to the body, help our intestinal peristalsis, and also better for the body, not too hot or too cold to stimulate our stomach.