Disengagement Theory proposes that as individuals age, they gradually withdraw from social roles and activities, leading to a decline in social interaction and engagement.

Activity Theory emphasizes the importance of maintaining an active lifestyle and social engagement in older adulthood to promote successful aging and overall well-being.

Continuity Theory posits that individuals attempt to maintain a sense of continuity and consistency in their lives as they age, seeking to preserve their routines, habits, and social connections.

Socioemotional Selectivity Theory suggests that as individuals age, they tend to prioritize emotionally meaningful relationships and interactions, while reducing their involvement in less emotionally significant relationships.

Retirement Planning Theory highlights the significance of proactive planning and preparation for retirement, including financial planning, lifestyle adjustments, and personal development.

Life Course Theory examines the influence of social, historical, and cultural factors on individuals' experiences of aging and retirement, recognizing the impact of broader societal changes and contexts.

Role Theory posits that retirement can result in a loss of social status and prestige associated with work-related roles, potentially leading to feelings of diminished self-worth and social isolation.

The Theory of Successful Aging emphasizes the importance of maintaining physical and mental health, social engagement, and a sense of purpose in older adulthood as key factors for successful aging.

Socioeconomic Status Theory posits that individuals' social class and economic resources significantly influence their retirement experiences, including access to financial security, healthcare, and leisure activities.

The Theory of Work and Retirement explores the influence of work-related factors, such as job satisfaction, work-life balance, and retirement policies, on individuals' retirement experiences and well-being.

Cognitive Decline Theory proposes that retirement can result in a decline in mental and cognitive abilities, such as memory, attention, and problem-solving skills, due to reduced cognitive stimulation and engagement.

The Theory of Retirement Adjustment suggests that individuals experience a process of adjustment and adaptation to retirement, involving changes in their routines, relationships, and sense of identity.

Social Support Theory highlights the significance of social support and networks in promoting successful aging, suggesting that strong social ties and relationships contribute to older adults' well-being and resilience.

The Theory of Retirement Identity explores the impact of retirement on an individual's sense of self and identity, recognizing that retirement can lead to changes in self-perceptions, social roles, and life purpose.

Freedom Theory posits that retirement can provide individuals with a sense of freedom and autonomy, allowing them to pursue personal interests, hobbies, and activities that were previously limited by work commitments.