This is an overview of the side effects of prohormones and the science behind it. Todd Lee M.D. explains the benefits of the different types of prohormones. For more information on the topic you can visit: www.mindandmuscle.net/articles/prohormone-side-effects/ This video is for opinion and informational purposes only. Nothing should be considered medical advice and is in no way a replacement for supplement and training advice from a medical professional. All results from any supplements are dependent on proper diet and exercise.