The pandemic is mostly behind us, but the restrictive measures taken by governments worldwide had a severe impact on young people, leaving in their wake an unprecedented child and adolescent mental health crisis. According to a meta-analysis of studies that included more than 80 thousand youth globally, the prevalence of depression and anxiety during Covid-19 has doubled, compared with pre-pandemic estimates. A staggering one in four youth globally are experiencing clinically elevated depression symptoms, while one in five are experiencing clinically elevated anxiety symptoms. Even before the Covid-19 pandemic, data from the U.S. National Survey of Children's Health showed that as many as 1 in 6 children had a mental health disorder though approximately half of them were not being treated for it. The pre-pandemic prevalence data for Europe is similar.  Not surprisingly, U.S. surgeon general Dr. Vivek H. Murphy recently warned of the “devastating” impact the pandemic had on young people...