Diastolic blood pressure is considered a better indicator of heart trouble than sys-

tolic pressure. The figure below shows age-specific average diastolic blood pres-

sure for the men age 20 and over in HANES5 (2003-04). True or false: the data show that as men age, their diastolic blood pressure increases until age 45 or so, and then decreases. If false, how do you explain the pattern in the graph? (Blood pressure is measured in "mm," that is, millimeters of mercury.) p-968