The prevalence of mental health disorders in Canada is at an all-time high, affecting approximately 6.7 million Canadians, making it the leading cause of disability in the country. This study focuses on the mental health situation in Toronto, one of Canada's biggest cities, and aims to identify the causes of frequent mental health visits by assessing the social determinants of health (SDH) related to mental health. The hypothesis of a correlation between the density of the Aboriginal population in Toronto and mental health prevalence visits is supported by numerous academic studies and prevalent factors. The long lasting trauma caused by residential schools impacts mental health through increased anxiety, depression, and poor relationships with caregivers. Additionally, the assimilation of the Aboriginal population has also caused a significant loss of socioeconomic status (SES). By placing them on reserves with limited financial support. Finally, epigenetics plays a significant role in understanding the intergenerational effects of historical trauma and its impact on the Aboriginal population. This study aims to harness the implications of these factors for social policy and advocacy as well as mental health promotion in Canada and other Anglo-settler nations. This study highlights the need for a sustainable solution to improve the mental health situation in Toronto. It calls for a two-pronged approach, including both prevention and treatment. Preventive measures include addressing the root causes of poor mental health, including the legacy of residential schools, economic disadvantage, and cultural discontinuity, while treatment should aim to provide access to culturally appropriate mental health services and support. By addressing the social determinants of health related to mental health and taking a holistic approach, it is possible to reduce the impact of mental health disorders in Canada and improve the well-being of all Canadians.