Inclusion Criteria:  The inclusion criteria include aged 18 aged or above, able to speak and read in Chinese, had presented mild to moderate depressive symptoms as identified by a minimum score of 5 on the Patient Health Questionnaire (PHQ-9), and will have at least 1 more year's study period in the university.  Exclusion Criteria:  We will exclude those with actively suicidal, PHQ score >15-19 moderately severe, 20-27 severe depressive symptoms, or those who are receiving antidepressant medication or mental health service such as counselling or psychiatric consultation, or Athletes/ >150 minutes of moderate-intensity aerobic physical activity throughout the week, or at least 75 minutes of vigorous-intensity physical activity.