Paul William McKenna (born 8 November 1963) is a British hypnotist, behavioural scientist, television and radio broadcaster and author of self-help books. McKenna has written and produced books and multimedia products, hosted self-improvement television shows and presents seminars in hypnosis, neuro-linguistic programming, weight loss, motivation and the Zen meditation Big Mind and Amygdala Depotentiation Therapy (ADT), otherwise known as Havening Techniques.

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