How long does a post-hypnotic suggestion last?
A. Donald Robertson writes, The false premise of the question can be exposed by comparing it to asking: How long do beliefs last? Hypnotic suggestions are simply ideas which are accepted as beliefs at a particularly deep level. In fact, there’s no simple answer. A post-hypnotic suggestion could last a few minutes or a lifetime, it depends upon a multitude of factors, including the psychology of the client, their subsequent life experiences, the precise nature of the suggestion, and the means of its delivery.
