I've been a massage therapist for almost 24 years and have never told anyone to drink "a lot " of water to flush out toxins.First of all,what is "a lot" of water? Cups,gallons? Second, what are toxins? And how does a massage therapist know YOU have these toxins? This is something that was started way back when and just passed on through the years without any real thought. Try getting a massage,and don't drink ANY water and see what happens.....nothing