Change in University Student Health Behaviours after the Onset of the COVID-19 Pandemic.

Student health behaviours changed in May 2020 and May 2021 due to the implementation of measures restricting mobility and social interaction. Even if some risky consumption decreased in 2020 after the first lockdown, there was no rebound phenomenon in 2021: consumption either remained lower or similar to the pre-COVID-19 period. These behaviours need to be monitored in the future to assess the long-term effects of these restrictions on student health behaviours.