Relaxation therapy is a behavioural therapy used to relieve psychological stress and mental or physical exhaustion. Stress results in increased nervous system activity which may impact negatively on disease processes. Relaxation therapy aims to decrease nervous system activity, slow heart rate, decrease blood pressure, decrease anxiety, improve mood, and produce a sense of control in people with medical conditions. Relaxation can be achieved using methods including imagery, breathing exercises, focused muscle tensing and relaxing, mindfulness meditation and others.