Question: is 64 oz of water good for you?
Answer: You may have heard that you should drink eight 8-ounce (237 milliliters) glasses of water a day (totaling 64 ounces, or about 1.9 liters). That's the wrong answer. Despite the pervasiveness of this easily remembered rule, there is no scientific evidence to back it up, according to a 2002 review of studies.