LAUSR

Purpose of review The COVID-19 outbreak profoundly influenced human lives on different levels. This narrative review aims to present recent data relating to the COVID-19 pandemic and internet use and internet-based addictive behaviours [problematic Internet use (PIU), Internet addiction, Internet gaming disorder, problem gambling or gambling disorder, social media addiction including smartphone use disorder, problematic pornography use, and compulsive buying]. Recent findings During the COVID-19 pandemic, the prevalence of Internet use and Internet-based addictive behaviours increased in all age groups. The COVID-19 pandemic and related containment measures were been associated with increased levels of stress, anxiety, and depression in the general population, especially among children and adolescents, which are the vulnerable groups for the development of mental disorders during the crisis. Furthermore, the fear resulting from the disease, the ‘lockdown’ measures, high levels of uncertainty regarding the future, and financial insecurity increased levels of loneliness, PIU, and Internet addiction. Summary Longitudinal researches focused on the negative impacts of Internet use in prolonged stress situations on mental health, vulnerable groups, and quality of life (QoL) are needed to help clinicians and policymakers to reduce adverse consequences. Prevention programs for Internet use and Internet-based addictive behaviours must be customized to meet the needs of children, adolescents, and adults. Also, treatment programs must be tailored to the needs of patients with different Internet-based addictions.