The power of belief / suggestion and how this effects our bodies autonomic nervous system by the release of hormones and neurotransmitters, natural pain killers, which in turn promotes healing / relieves pain. In addition the state of hypnosis aides relaxation, promoting the engagement of the parasympathetic nervous systems and bringing about homeostasis. In essence our thoughts and beliefs can have a physiological effect on the body and our wellbeing. Hypnotherapy is about utilising positive suggestions / ideas / imagery in a state of hypnosis which consequently helps changes a persons negative beliefs to positive beliefs and in turn can have a positive physiological effect on the body. Both Placebo and Hypnotherapy utilise the power of belief.