Dr Medarov said it might be possible to use relaxation techniques and other types of therapy to modify lung function circadian rhythms.

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Relaxation techniques such as meditation and deep breathing can bring a toxic level of anxiety down, but harnessing it can ultimately be more effective.

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But relaxation techniques may not be enough, Peeke said, since the best way to block stress hormones is through beta endorphin -- produced during exercise.

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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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He has brought it down to a healthy level by using relaxation techniques, including deep breathing and guided imagery lying still and imagining stressful tasks turning out well.

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They also use behavioral techniques and relaxation exercises to increase the association between bedtime and sleep.

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Meanwhile, other psychologists rebelling against Freud pursued behavioral techniques, including relaxation breathing exercises and "exposure" therapy for panic attacks.

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Relaxation skill tools and anger management techniques are part of the program.

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