Keeps you hydrated

Although cold water is probably actually better for hydration, in fact, drinking water of any temperature is good. All water is going to hydrate you.

There hasn't been much research on this topic, but most experts agree that if you go three days without drinking any water (or anything that includes water), you're probably going to die. According to the Institute of Medicine, men should drink 112 ounces (3.3 liters) of water per day, compared to 78 ounces (2.3 liters) for women. These statistics include the water that is present in foods like fruits, vegetables, and anything that melts. Additionally, if you're nursing a baby, exercising strenuously, or working in a hot workplace, you need a lot more water. Consider drinking a cup of hot water in the morning and one in the evening.