Stress weakens the immune system. How?
A. reduces the amount of stress hormones released
B. stress reduces the amount of the hormone ACTH
C. it reduces the number of natural killer cells
D. it increases parasympathetic activity
Answer: C
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What will be an ideal response?
Major changes in sleep patterns, weight level, and a loss of interest in pleasurable activities characterize
A) agoraphobia. B) major depressive disorder. C) schizophrenia. D) social anxiety.
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Indicate whether the statement is true or false
The first antidepressant was ______, a drug originally developed as a treatment for tuberculosis.
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