Which personality characteristic appears to be most predictive of cardiac-related illnesses?
a. an external locus of control
b. high levels of hostility
c. unusually elevated levels of stress
d. being introverted
Question 2
Long, stressful exam periods produce a(n)
a. improvement in immune response.
b. decline in immune response.
c. decrease in corticosteroids.
d. increase in gamma interferon.