CONCLUSION Although I started this essay by saying that 'not many people have heard of GTS' it would appear that GTS is no longer the rarity it was once considered to be and although it's still not common it's believed that the prevalence of the syndrome is far higher than the figures quoted from the reported cases in Britain. Recent research has indicated that genetic factors might be involved and although the precise aetiology is unknown several possible anatomical sites and neurotransmitter abnormalities have been implicated as a possible cause of GTS. Finally, in reviewing the contents of this essay it appears that GTS brings together many strands of understanding, it's clinical aspect, for instance, brain biochemistry, the use of drugs and lastly behavioural approaches to help control some of the features associated with GTS. However, for the person who has to live with GTS and their families it can be a life long companion with, as yet, no foreseeable cure.…