Later adulthood is defined as starting at which age?

Later adulthood is commonly defined as starting at 65 years of age. This age is significant in many countries as it aligns with the eligibility age for retirement and the onset of certain benefits such as Social Security in the United States. At 65, individuals often transition into a stage where they may begin to experience more health-related issues associated with aging, as well as changes in social roles and activities. This age marker also reflects broader demographic trends, with many people living longer and healthier lives, making the concept of later adulthood an important factor in the fields of health care and economics. Understanding this transition is crucial for planning and providing appropriate health care services and support systems for the aging population.