Study on the NIH website: "COVID-19 and the Political Economy of Mass Hysteria"
Mass hysteria encouraged by media and the state can cause physical symptoms and is contagious. Damage can be easily mitigated by "mere information."
People fear Covid "to an extent not easily explainable by their own miniscule risk of death from it. It seems that many people believed in the existence of a killer virus far more mortal than SARS-CoV-2 actually is"
A great read.