Alopecia areata can affect any part of the body which has hair - and it affects an estimated one million people in the United Kngdom. It is an auto-immune hair loss disease which means the body's immune system mistakenly attacks the hair follicles, preventing them from growing.
Psychological factors - such as stressful events or psycho trauma - have been reported as playing a role in its onset. However there have been relatively few studies examining the efficacy of psychological interventions.
The 21 patients selected by Dr Willemsen’s team had previously all failed to respond to treatment with steroids. Most of those taking part in the trial received hypnosis together with other form of medical treatment.