It Is Ethically Impossible to Conduct Experimental Studies of Stress

Multiple Choice

It is ethically impossible to conduct experimental studies of stress and immune responses in humans to determine whether severe stress actually causes susceptibility to health problems.However,Cacioppo and his colleagues (1998) found that _______.

A) stressors can increase anxiety which is related to infections.
B) major stressors can impact the length of the common cold.
C) even minor stressors can suppress immune responses.
D) people who experience stress are ill more often.
E) loud noises can suppress immune responses.