Middle age, also known as middle adulthood, is generally considered the period between about 40 or 45 years old to around 60 or 65 years old. This age range marks the midpoint between young adulthood and old age, though the exact boundaries are debated and can vary culturally and individually
. Physiologically, middle age is characterized by the onset of physical changes such as graying hair, decline in fertility (notably menopause in women around 45-55), and a gradual reduction in physical fitness. Cognitive changes may occur but are often compensated by life experience
. Socially and psychologically, middle age involves adapting to changing family dynamics, such as relationships with grown children and aging parents, and often includes a focus on generativity-concern for future generations
. Some recent surveys suggest middle age may start later, around 55, and extend into the late 60s, reflecting changes in life expectancy and attitudes toward aging
. However, traditionally, the 40-65 age span remains the most commonly accepted definition. In summary, middle age is broadly considered to be from about 40-45 to 60-65 years old, marking a transitional phase with physical, cognitive, and social changes between young adulthood and old age
