That's the claim made by many right wing anti COVID restriction people. What's more, it seems to be based on a CDC report. So is there anything to it? Find out!
Links: Yard et al (2021) CDC report, Popular press coverage of report 1, 2, 2020 CDC report (claiming that adolescent ED visits for mental health increased by 31% in 2020 compared to 2019), CDC Reports on decline in total ED visits for March/April 2020, Through March 2021, Timing of State and Territorial COVID-19 Response, CDC Mortality data 2014-2019, 2020-2022 (provisional), WISQARS nonfatal injury reports, WISQARS fatal injury reports, Lindsey's Graphs