A study shows that re-inhaling the air in your mask hydrates your lungs and boosts the immune system. https://www.healthing.ca/diseases-and-conditions/coronavirus/it-sounds-gross-but-the-humidity-in-your-mask-is-good-for-you?utm_source=Twitter&utm_medium=postmedia_organic&utm_campaign=healthing_promo#Echobox=1613573640 … — via @healthing_ca
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Is the National Post pushing a Narrative? No study anywhere in the history of the modern world would ever say reinhaling your own CO2 is a health benefit. I'm just going to put this out there
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That chart is very similar to the results of the study of the effects of mask wearing on school children.https://www.researchsquare.com/article/rs-124394/v1 …