I never thought about the temperature of the water making a big difference, this is good to know. There is a lot of science behind water, it basically is the cure all we've been overlooking. Alkalized water with some lemon is amazing for the body, and various teas do wonders. Just make sure the water is filtered of all chemicals, chlorine and no fluoride.
RE: Drink a glass of warm water every morning on an empty stomach, here's why!