Alcohol is a diurrhetic. The worse you feel the next day is entirely caused by dehydration. It has nothing to with what brands you drank and more to do with how dessicating your drinks are. Beer contains more water than liquor.
Drinking water doesn't "clean" you, it stops your kidneys from failing altogether.
You should always pound down water after heavy drinking. It's the only physiological cure for hangovers.
There are societies that drink a lot of alcohol and live long lives by following local "rules" about drinking. People in those societies live long lives.
So I disagree.
A good way to test it - do it yourself. You will see a noticeable difference. Go in the evening after the gym. Hydrate yourself through the day and you will see a huge difference in performance.
There is quite a lot of talk about it in sports/gym circles for many years.
Drinking water doesn't "clean" you, it stops your kidneys from failing altogether.
You should always pound down water after heavy drinking. It's the only physiological cure for hangovers.