In general, the approach to stress embraced by psychoneuroimmunologists focuses on
a. the brain and the body.
b. the outcomes of stress.
c. psychological factors and the immune system.
d. the brain and the immune system.

Which statement best explains the relationship between diet and osteoporosis? a. cholesterol blocks calcium from reaching bone cells. a diet that is high in cholesterol can lead to osteoporosis. b. calcium and phosphorus build strong and flexible bones. a diet that lacks these nutrients can lead to osteoporosis. c. protein and iron build strong and flexible bones. a diet that lacks these nutrients can lead to osteoporosis.