People who suffer from panic attacks

a. seem to be extremely sensitive to any elements of risk or danger in their environments.
b. will have a panic attack if they breathe air laced with helium.
c. often have a twin who also suffers from panic attacks.
d. inherited a recessive gene for the disorder.
e. do not usually experience anticipatory anxiety.

a. seem to be extremely sensitive to any elements of risk or danger in their
environments.

Psychology

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Which of the following are four classifications that young people can be grouped into as substance users?

a. experimental, social, medicinal, and addictive b. medical, pharmacological, social, and experimental c. pre-addictive, addictive, post addictive, and recovery d. social, antisocial, asocial, and pre-social

Psychology

As cited in the text, which of the following might be related to whether or not a person can be classified as high in morningness or eveningness, that is, their preference for either going to bed early and waking up early or going to bed late and

waking up late? a. growth hormone b. melatonin c. caffeine d. acetylcholine

Psychology