Once she knows how stressed a client is she can take the next step and address it with cognitive behaviour therapy or other techniques.

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One group, with 19 children, received standard treatments for anger including cognitive-behavioral therapy, presentation of relaxation techniques and social skills training for five consecutive business days.

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By the 1960s two men had broken off to pursue, separately, new techniques that formed what became known as cognitive behavioral therapy: New York therapist Albert Ellis and the University of Pennsylvania's Aaron Beck.

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