Ok, so Why can’t I just drink regular water?
Regular water cannot be absorbed by the cells at its natural state - it sounds crazy, but the science behind it is not.
In order for the cells to absorb it, the salt balance must be the same in the water as in the body (Osmosis). This means that your body will release valuable salts and minerals (electrolytes) into the water in your stomach in order to create the same solution of salts on both side of the cells before it can be absorbed.
The result is that the body loses vital salts and minerals essential for brain and nerve functions. This triggers a diuretic response, meaning that the brain tells the body to release water in order to keep the levels of electrolytes at a safe level, so your body won’t shut down.
Basically, you have to pee and for every sip of regular water you drink, it gets worse.