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The start of puberty marks significant physical changes. Growth spurts occur, and secondary sexual characteristics develop. Emotional changes include mood swings and increasing desire for independence. Abstract thinking abilities begin to develop, and peer relationships become more important.

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Physical growth continues but at a slower rate. Increased interest in romantic relationships emerges. Critical thinking skills improve, and career interests start developing. Identity formation becomes a central focus as teens explore who they are and what they believe in.

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Physical growth typically complete. Major life decisions about college, career, and independence are made. Enhanced decision-making abilities develop, though the brain continues maturing. Greater emotional stability begins to emerge.

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Brain development completes around age 25. Career exploration and establishment of long-term relationships occur. Financial independence becomes a priority. Many begin to settle into adult roles and responsibilities.

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Career advancement and professional growth continue. Many form committed relationships or start families. Financial and personal responsibilities increase. Strong sense of personal identity develops.

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Career stability typically achieved. Family responsibilities may include caring for children and aging parents. Physical changes begin slowly. Focus often shifts to long-term life goals and personal fulfillment.

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Hormonal changes may begin (menopause in women). Career peak often reached. Children may begin leaving home. Greater emphasis on health maintenance. Wisdom and life experience contribute to decision-making.

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Retirement planning becomes more crucial. Physical changes become more noticeable. Grandparenthood may begin. Focus often shifts to health maintenance and leisure activities. Career transitions or retirement may occur.

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Retirement often occurs during this period. Social roles change with retirement and grandparenting. Health management becomes increasingly important. Many focus on hobbies and personal interests.

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Emphasis on maintaining independence and quality of life. Wisdom and life experience at their peak. Social connections and family relationships particularly valuable. Focus on leaving a legacy and sharing life experiences with younger generations.