Health Psychologists Had Newly Married Couples Engage in a 30-Minute

Health psychologists had newly married couples engage in a 30-minute discussion of marital problems. What did they find when they compared couples who were more hostile and negative with those who had more positive conversations?

A) Hostile interactions were associated with immunosuppression.
B) Hostile interactions led to a higher rate of colds over the next month.
C) Although hostile interactions raised blood pressure, it quickly returned to normal.
D) The type of interaction had no demonstrated effect on any aspect of immune system functioning.