This document discusses factors that affect health in middle adulthood. It identifies several risk factors for diseases like heart disease and cancer such as smoking, diet, physical inactivity, and heredity. It also explores how personality, gender, socioeconomic class, and ethnicity can impact health. For example, it suggests that type A personalities may be linked to higher disease risk. It notes the relevance of this information for preventing disease and how nurses can educate patients based on risk factors.