This study examines how two common ways of studying, mandatory Group study and Individual study, affects students’ mental health. 45 Swedish University students were scouted on the web and linked to an online questionnaire where they rated themselves during two conditions: working in group projects and working individually. A Student's t-test showed a strong significant difference between stress levels during Group study and Individual study, with Group study generating higher levels of distress among the participants. These findings are relevant to the discourse of stress and stressors in the educational environment as well as in work settings.