Retiring means losing the structure, purpose, and social connections that work provided, which can lead to feelings of isolation, anxiety, and a loss of identity. My grand uncle, for example, struggled with this transition. After retiring, he felt disconnected and depressed. He tackled it by taking up new hobbies, volunteering, and staying active in social circles. Mental health in retirement often depends on how individuals adapt to changes in routine and find new sources of fulfillment.