i did two colonics in the last week and a half- if you flush everything out of your system you will be stunned and amazed at how you feel. in the process of doing it you get quite a work out for the rectum and learn a bit about the location of your colon as well. it helps to crouch over your feet and relax your neck while on the toilet bowl as well. you do this afterwards. i highly recommend it, but remember to rebuild your flora afterwards with probiotics.