Final answer:
Health and mortality concerns typically come to mind during middle adulthood, a period from the mid-30s to the mid-60s when chronic diseases become more common and signs of physical aging are noticeable.
Step-by-step explanation:
Concerns over health and mortality are most commonly associated with middle adulthood and late adulthood.
Middle adulthood, which lasts from the mid-30s to the mid-60s, is characterized by increased awareness of mortality and a higher risk for the development of chronic health issues such as type 2 diabetes, heart disease, and cancer. During this stage, individuals often experience physical signs of aging including wrinkles and gray hair, and cognitive changes may occur.
On the other hand, late adulthood begins in the mid-60s and continues until death. This stage is marked by retirement, reflection on life, and generally higher concern for health due to the increased susceptibility to diseases and the common causes of death associated with aging. Nevertheless, the most profound focus on health concerns tends to emerge in middle adulthood as people begin to notice physical changes and confront a heightened risk of serious health problems.