Drinking eight glasses of water a day

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Drinking eight glasses of water a day

Admit it, this is one healthy habit that’s a royal pain. Luckily, it’s also completely unnecessary. For some people, eight glasses a day might actually be far too much, leading to sodium deficiencies and potentially life-threatening water intoxication, caused by kidneys not being able to keep up the intake of liquids. In 2002, a kidney specialist tried, in vain, to find any scientific evidence supporting the eight-glasses-a-day myth. His report, published in the American Journal of Physiology, concluded that this standard health advice was complete and utter bunk that, like many urban legends, stemmed from a tiny grain of truth. Apparently, the dietary guidelines provided by the Food and Nutrition Board of the National Research Council do say that humans need 1 milliliter of water for each calorie of food—adding up to about 10 cups a day. However, the same guidelines also say that we get most of this liquid from the water in solid food. There’s no need to drink more.