Behavioural therapy is based on the theory that you can ’unlearn’ learnt behaviour or change that behaviour, without focussing on the reason behind that behaviour. People with compulsive and obsessive disorders, fears, phobias and addictions may benefit from this type of therapy. Originally, behaviour therapy and cognitive therapies distinct from each other. They have tended to be combined to produce what is now known as Cognitive Behavioural Therapy or CBT.