Substance abuse can have significant effects on a person’s mental health, leading to the development of mental health disorders such as depression, anxiety, and psychosis. Substance abuse can also exacerbate existing mental health conditions, making them more difficult to manage. Additionally, substance abuse can impact a person’s cognitive function, memory, and decision-making abilities, further exacerbating mental health issues. Over time, substance abuse can lead to chronic mental health problems that may require long-term treatment and support.