As discussed in the text, hostility is linked to increased risk of coronary heart disease because .
a. hostile people are frequently angry, and chronic anger increases the risk of hypertension and coronary heart disease
b. hostile people frequently vent their anger and frustration, and yelling or arguing with others increases blood pressure and the stress placed on the circulatory system
c. hostile people sometimes bottle their emotions and stifle emotional expressions, thereby causing an increase in heart rate and blood pressure
d. hostile people frequently over-exert themselves in an effort to come out on top or to prove that their ideas and efforts are superior to those of others
e. hostile people frequently misuse over-the-counter medications and, sometimes, illicit drugs.
Question 2
The protective function of sleep refers to the role of sleep in
a. protecting the organism against disease.
b. protecting the animal from nighttime predators. c. preventing depletion of bodily resources.
d. preventing the animal from injuring others. e. protecting the environment.