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For years, we've been told that if you want to stay healthy, you should drink 6 to 8 glasses (about 2 liters) of water a day. But is this number really backed by science?
Is there scientific evidence to support drinking 8 glasses of water a day?
For years, we've been told that if you want to stay healthy, you should drink 6 to 8 glasses (about 2 liters) of water a day. But is this number really backed by science?