What is the relationship between stress and illness?
A.) When stress causes the fight-or-flight response, it increases the body’s ability to fight an illness.
B.)Prolonged stress can make a person tired, but it has no harmful effects on the immune system.
C.)Stress can trigger certain illnesses, reduce the body’s ability to fight an illness, and make some diseases harder to control.
D.)The only relationship between stress and illness has to do with the effects of tension on blood pressure.