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Rapid Cycling
A pattern of bipolar symptoms that includes at least four manic or depressive episodes per year.
Relapse
The return of symptoms after a relatively brief period of time.
Relaxation Technique
Any psychological or physical exercise engaged in to produce a feeling of relaxation including breathing exercises, meditation, and yoga.
REM
Rapid eye movement sleep.
Remission
Apparent complete recovery that may or may not be permanent or enduring.
Resilience
The ability to overcome challenges, obstacles and threats.
Respiratory Disease
A disease of the lungs (such as asthma) that may result in symptoms similar to anxiety.
Reticular Activating System (RAS)
The system of nerve fibers that go from the reticular formation at the base of the brain throughout the higher brain centers that are involved in general arousal.
Reticular Formation
A portion of the brain stem that plays an important role in general arousal and attention.
Rigidity
The tendency to cope the same way, despite the problems that result from that coping style, usually associated with a failure to see problems with the coping style and difficulties in trying new behavior.
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