Depression is a mental health condition which Journal of Affective Disorders confirmed that 24.4% university students experience. This thesis is focused on the main factors contributing to depression among university students, such as sleep deprivation, poor eating habits and social interactions. Through research of existing literature, the study is focused on the high prevalence of depression in this population, often driven by unique challenges faced during the academic year and by the academic stressors. Sleep deprivation is shown to disrupt cognitive and emotional functioning, leading to lowered academic performance and increased depressive symptoms. Poor dietary habits, characterized by emotional eating and the consumption of low-nutrient, high-caloric foods, are linked to heightened psychological distress, creating a cycle of depression and unhealthy behaviour. In addition, social interactions as one of the risk factors underscores the significance, where strong social networks act as a protective factor against depression, while social isolation and breakups of romantic relationships contribute to the development of depressive symptoms. Identifying these factors, this thesis offers valuable insights that can guide the development of targeted prevention and intervention strategies to the specific needs of university students. The thesis attempts to improve the mental health and general well-being of college students by focusing on both lifestyle and social interactions.