This report investigates the negative health consequences of the legalization of marijuana in Canada. It highlights the potential increase in health diseases and infections, particularly among younger Canadians. The report references studies linking marijuana use to various health issues, including cancer, heart-related disorders, and mental health problems. It also discusses the impact on driving ability and the potential for addiction. The report emphasizes the challenges in managing health problems associated with marijuana use, supported by data from health surveys and expert opinions. The report concludes by summarizing the potential risks, including lung cancer, mental health issues, and family involvement, emphasizing the need for awareness and caution regarding marijuana consumption in Canada. The report is supported by references to studies and articles from sources such as the CBC, CDC, NCBI, and Science Daily.