Introduction Campaigning for the improvement of late life mental health has become increasingly important in the modern society. Owing to the snowballing number of older people around the world, there is a need to address the transitions in late life with a view of improving the physical, psychological, social, economic, and interpersonal aspects amongst the older population. It has been revealed that older people develop diverse attitudes, preferences, behaviors, and political attachments among other changes. This essay provides an overview of the changes that occur in late life with a view of addressing various mental health concerns. Psychological Changes in Adulthood Personality According to Ferrini and Ferrini (2003), the psychological traits of individuals significantly change as they progress into their late life. Earlier studies indicated that personality changes only occurred in childhood developmental stages until adolescence. However, recent studies show that such traits change even in old age. Various life events such as occupation, marriage, and parenthood have been perceived as key factors that determine the personality of an individual (Ferrini & Ferrini, 2003). Retirement While retirement offers a good opportunity for participation in alternative activities such as getting involved with family matters, others see it as a life event that results in prolonged periods of solitude and dormancy. Indeed, Shahrestani, Quach, Mueller, & Rose (2010), revealed that some retirees develop a feeling of worthlessness. Retirement is usually associated with negative aspects such as reduced earnings, disposal of possessions, and moving of homes among others. Such changes have a direct impact on the wellbeing of the old people. Relationships Mikulincer and Shaver (2010) reveal that the most critical aspects underlying the mental health and wellbeing of human beings in late life include collective and civic involvement. The strength and quality of the social relationships and engagement in communal activities are strongly associated with the fitness, welfare, and the value of life amongst the elder people. According to Mikulincer and Shaver (2010), the probability of reducing depression increases as an old person confides more relationships with friends and family. These situations can bring about poor mental health. Mental Impacts of Physical, Psychological, Social, Economic, and Interpersonal Losses on Late Life The progression of life from young to old age involves significant brain changes that result in physical, psychological, social, economic, and interpersonal losses owing to reduced cognitive abilities (Shahrestani et al., 2010). This state of affairs brings about various effects that continue to worsen the mental well-being of the elderly people. For instance, reduced physical and psychological activity can lead to social discrimination. Economic loss also contributes to poor mental health as the elderly struggle to minimize expenditure. These situations leave the old people struggling with loneliness, isolation, and low-self-esteem. As a result, they suffer from depression and other mental hitches that can even result in madness and/or suicide (Wu, Schimmele, & Chappell, 20