By signing below I understand that NeurOptimal® is not a medical treatment, device or methodology. It is not used to diagnose medical disorders nor is it used as a medical treatment for disorders and has not been approved for any medical purpose by the FDA, Health Canada or any other governing agency. While Zengar® users may or may not be licensed health care practitioners, their use of NeurOptimal® is solely as a tool for brain training and optimization and not as a means of diagnosis or as a medical intervention. I am satisfied with the information I have been provided (verbal, written or otherwise) by my Trainer on the effects I can expect during my NeurOptimal® training and my questions have been answered to my satisfaction. I understand that it is not possible to predict what my central nervous system will do with the information it is offered and consequently there can be no guarantee as to the results of my training. I also understand that under normal use, NeurOptimal® does not produce side effects. Some users however, may experience some temporary effects from training due to the increase in challenge to the brain that the training represents. This effect typically resolves after a few Sessions. I agree to cease training if I am less than happy with the results I am getting. I understand NeurOptimal® is purely a source of information and does not direct the response of the central nervous system. Consequently I agree to not hold Zengar Institute Inc. or any of its users and Trainers responsible for a less than desired outcome or any outcome that may be considered negative.