"That says a lot about how overwhelmed parents feel, and how little they trust that all the technologies in their children's lives are supporting their well-being," Dr. Jenny Radesky, an assistant professor of pediatrics at Michigan Medicine told CNN. She wasn't involved in the study. Other concerns include a lack of physical activity, an increase in unhealthy eating, racism, depression and risk of suicide. The poll included more than 2,000 parents of children ages 0 to 18. Other worries include their children's stress and anxiety levels, and their smoking, vaping, drinking or drug activities. "Parents' biggest concerns for young people seem to be associated with changes in lifestyle as a result of the pandemic," study author Dr. Gary Freed, co-director of the Mott National Poll on Children's Health, said in a statement.