There are many articles in support or disputing it - I am not here to prove anyone right or wrong.
The simple logic I have is that each of our body systems knows how much water we need and it will act accordingly. It is no use forcing yourself to drink water. Once the thirst hits you and you crave for water, go for it. Read the below article or you can also search on your own other articles....
Happy Drinking! :)
From The New York Times, "No, You Do Not Have to Drink 8 Glasses of Water a Day" by Aaron E. Carroll
https://www.nytimes.com/2015/08/25/upshot/no-you-do-not-have-to-drink-8-glasses-of-water-a-day.html?_r=0
