in a December 2023 publication in the British Journal of Medicine, not only did the masks not stop a COVID outbreak, they lead to the increase in the spread of COVID.
Even worse, the Journal is the lastest peer reviewed respected publication to acknowledge that the masks to in fact trap CO2 leading to higher CO2 concetrations in the blood
In addition, mask wearing has been associated with physiological harm — many of which are more frequently reported in children than in adults — which may have multiple negative downstream effects, including reduced time and intensity of exercise, additional sick days, reduced learning capacity, and increased anxiety. Masking has also been found to lead to rapid increase in CO2 content in inhaled air — higher in children than in adults — and to levels above acceptable safety standards for healthy adult workers, which may rise further with physical exertion.
This leads to a simple cost-benefit analysis of child mask mandates.
Costs: potentially language learning and communication issues, worse psychological well-being and negative physiological effects.
Benefits: None
As pointed out on this website, Harvard studies have shown that even a slight CO2 concentration of ambient air breathed in causes significant cognitive loss