Not sure you can call three selected articales to demonstrate a point- the science. If hey ho. Most people don’t drink enough water we don’t hydrate and it’s not only when you are thirsty. Either way what I do agree with you on is that we don’t need tech to track it. I can’t imagine anything worse than a $150 smart bottle that tells you how many time you have filled it up and drank from it. Crazy.
Drink water all day. Then you don’t need an app to track