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ANXIETY DISORDERS
Anxiety is a normal reaction to a threatening situation and results from an increase in the amount of adrenaline from the sympathetic nervous system. This increased adrenaline speeds the heart and respiration rate, raises blood pressure, and diverts blood flow to the muscles. These physical reactions are appropriat ....
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Middle of Paper
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.... of dying, flushes, fear of going crazy.
Heredity, metabolic factors, hyperventilation, and psychological factors may contribute to anxiety causing panic attacks. (Hale, 1886)
Panic disorder tends to run in families with first degree relatives of patients having four to seven times greater risk than the general population.
Metabolically, the levels of three neurotransmitters, nor-epinephrine, gamma-aminobutyric acid (GABA), and serotonin, may play a role in anxiety. These neurotransmitters act as signals between brain cells. Drugs that change the levels of these neurotransmitters a ....
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