Book excerpt: This book introduces the technique of Regressive Meditation, which the author claims has the potential of being able to slow down the ageing process, without drugs, dietary supplements, or plastic surgery. After an account of how the brain clock controls ageing and how we in turn can influence that clock, Dr Forrest brings together his background in physiology and hypnotism to examine the practices of the rejuvenators and to understand any successes they may have had. It was this analysis that led him to develop Regressive Meditation.