People’s beliefs about aging have a profound impact on their health, influencing everything from their memory and sensory perceptions to how well they walk, how fully they recover from disabling illness, and how long they live. When aging is seen as a negative experience (characterized by terms such as decrepit, incompetent, dependent, and senile), individuals tend to experience more stress in later life and engage less often in healthy behaviors such as exercise. When views are positive (signaled by words such as wise, alert, accomplished, and creative), people are more likely to be active an…