There have been multiple comments here calling out drinking specific quantities of water. I am not sure about the scientific validity of the advice and hence n

There have been multiple comments here calling out drinking specific quantities of water. I am not sure about the scientific validity of the advice and hence not going to comment on that. But what I do have realized is (atleast is my case) often we mistake thirst signals from our body for hunger signals or rather as cravings and grab a snack. This idea was suggested in one of the n number of resources I read online about weightloss, so I am not able to cite the exact article. Consciously noting craving signals and just substituting water often made the cravings go away. When it doesn't, obviously I am hungry :) Now we are venturing deep into the land of extrapolation. So, take this with a huge grain of salt. I suspect that in our hunter gatherer days (or earlier0, water was not readily available at hand. So humans, then, would have depended on fruits and leaves as a source of water as well as food. Hence why atleast some of get our hunger and thirst signals mixed up ;)