While mental health issues can affect people of all ages, research suggests that young adults aged 18-25 years experience the highest prevalence of severe mental illness. This age group is often navigating major life transitions like finishing education, starting careers, and forming independent relationships, which can put significant stress on their mental well-being.
It's important to note that mental health conditions can develop at any age and that children and adolescents also face significant mental health challenges. However, the statistics consistently point towards young adults as the age group with the highest rates of severe mental illness.