Abstract
University students are at high risk of exhibiting problematic Internet use as they tend to spend a lot of time online. The present study aimed to test the hypothesis that procrastination would mediate the relationship between flow and problematic Internet use in a sample of 178 Greek University students, 67% of whom were females using a snowball sampling technique. Results revealed that flow was positively related to problematic Internet use (r = 0.36). In addition, mediation analysis revealed that academic procrastination mediates the relationship between flow and problematic Internet use. Findings suggest the more pleasurable is the Internet activity, the more the students tend to procrastinate towards meeting their academic obligations, and this is related to long hours of Internet use. Findings enrich previous literature on problematic Internet use and could potentially inform policies aiming to protect students’ health and well-being.