About 90% of heart attacks occur early in the morning & it can be reduced if one takes a glass or two of water before going to bed at night.
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But most of the heart attacks occur in elderly people. So, if you are elderly, and you drink "a glass or two of water before going to bed at night," be sure to wear a diaper.
Other than that, if you want to see how important water is, consider the Christian religion and others. Christianity is built around the Sacrament of Holy Baptism... water.
