What This Means
This research suggests that among junior high school students in Shenzhen, China, emotional eating — using food to cope with feelings — is linked to internet addiction, and that this relationship is partly explained by two psychological factors: poor sleep and depression. Researchers surveyed 3,245 students and found that emotional eating was associated with worse sleep quality, which in turn was linked to higher rates of depression, and that depression was then associated with greater internet addiction. Each step in this chain — emotional eating to poor sleep, poor sleep to depression, and depression to internet addiction — contributed meaningfully to the overall connection.
The study identified three distinct pathways connecting emotional eating to internet addiction: one running through poor sleep alone (accounting for about 15% of the total connection), one running through depression alone (about 20%), and one running through both poor sleep and then depression in sequence (about 10%). Together, these pathways explained roughly 44% of the total association, suggesting there are likely other factors also involved.
This research suggests that interventions aimed at reducing internet addiction in teenagers might benefit from addressing not just screen time directly, but also the upstream factors of emotional regulation skills, sleep hygiene, and mental health support. Because the study was cross-sectional — meaning it measured everything at one point in time — it cannot confirm that emotional eating actually causes internet addiction, only that the two are statistically associated in a pattern consistent with the proposed pathway.