Odpowiedzi na post #7

It honestly seems like for every study saying it's not useful there is a study saying it was effective and vice versa. It's unclear to me right...

You only have to look at the mortality rates, India 2.23, the UK 15.26. Which one is using Hydro?

It's still a mixed bag. There's an equal amount of evidence that it does more harm than good versus more good than harm, so the jury is still out