General Practitioners and other medical sources now recognise that stress affects the immune system and the depletion of the immune system is a major factor in cancer. Cancer prevention is also important as 1 in every 2 men and 1 in every 3 women will suffer from cancer in their lifetime. Hypnosis can help in a number of ways including, pain relief, boosting the immune system by using suggestion, encourage following of diet, stress relief, improve psychological attitude and overcome the side effects of treatment helping clients live fuller richer and more meaningful lives.