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Students are some of the primary psychological victims of the global health crisis. This population is particularly sensitive to stress, and is also prone to developing substance and behavioral addictions, including food addictions, which may be exacerbated by the lockdown and health measures. Levels of stress, anxiety, loneliness, and depressive symptoms among students have increased since the coronavirus crisis. Several studies show that drug use, including alcohol, has also increased since the implementation of health measures. Interestingly, the stress that was most perceived by students with addiction problems was mainly due to uncertainty about the organization of daily life and the expected consequences of the lockdown. Stress appeared to be more prevalent among female students and was associated with more anxiety disorders, more exposure to the media, and less social support. When problematic eating behaviors were already present before the lockdown, the stress of the lockdown increased them. Protective factors such as social support and regular contact with family protected against stress and the various addictive issues studied.