Final answer:
The healthiest lifestyle for aging people can be attributed to either the activity theory or the continuity theory of aging.
Step-by-step explanation:
The subject of this question is Social Studies, specifically the study of aging and social theories related to aging populations.
When it comes to the healthiest lifestyle for aging people, the activity theory suggests that remaining active and involved in various activities and social roles is beneficial for longevity, happiness, and health. This theory emphasizes the importance of staying engaged and participating in activities such as hobbies, traveling, or new work roles.
On the other hand, the continuity theory suggests that maintaining consistency in one's internal and external structures, such as relationships and beliefs, leads to a healthier aging process. This theory emphasizes the continuation of social roles and maintains social equilibrium.
Lastly, the disengagement theory suggests that withdrawing from society and social relationships is a natural part of growing old. However, critics argue that access to social opportunities and activities may not be available equally for everyone.