You're right. No research has shown that, for otherwise healthy people, drinking water beyond what your body tells you to drink has any health effects. Hydratio

You're right. No research has shown that, for otherwise healthy people, drinking water beyond what your body tells you to drink has any health effects. Hydration also does not have to come from water to be effective. The 8 cups a day rule is a myth. (http://www.nytimes.com/2015/08/25/upshot/no-you-do-not-have-to-drink-8-glasses-of-water-a-day.html http://www.nytimes.com/2015/08/25/upshot/no-you-do-not-have-..., links to research in the article)