Oops, forgot to specify...U have to do that everyday for a week, if you want more info on it check out the book Turn Up the Heat by Phillip Goglia....go to www.turnuptheheat.com, u can order it but I suggest getting it at the library. I have done it and it has worked but it is alot of water to drink in a day so try to start doing it when u r out of school for the summer or something, or if u can just drink it all after u get out of school so u dont have to go to the bathroom every 5 mins...lol. I drank my water after school and It still worked.