26. In comparison to younger adults, older adults A) experience more stress. B) are more likely to have their immune system weakened by stress. C) are faster to develop antibodies in response to vaccines. D) experience less stress in reaction to public speaking. 27. Which of the following has been linked to a number of diseases in older adults? A) Having high levels of secretory immunoglobulin A. B) Having high levels of Interleukin-6. C) Having low levels of “anger-in.” D) Having low levels of secretory immunoglobulin A. 28. The first to propose that hypertension was caused by “anger-in” was A) Lazarus. B) Harburg. C) Alexander. D) Rosenman. 29. In a study mentioned in the text, the link between optimism and immune functioning in first year law students A) was only found in women. B) was partially mediated by appraisal of stress. C) did not exist once appraisals of stress were considered. D) indicated that optimistic students actually perceived law school as more aversive than pessimistic students. 30. Systolic blood pressure is the amount of pressure when A) the heart is pumping. B) the heart is resting. C) the person is in motion. D) the person is in a relaxed position.  Â