A neurologist friend told me he and some of his colleagues were very concerned about young people under the age of 25 wearing these masks. The restricted brain development and damage they could potentially be causing that might not manifest until they are in middle age are what worries him. He said he wouldn't be surprised if in the future we had a flood of middle aged people with dementia and other cognitive problems.
That's why I wear the thinnest and most porous mask I could get away with (urmc.rochester.edu)
Achtunt! You must always obey. You're still imperiling your health short term and long term. Hypercapnia has a large range. It leads to cancer among other health issues. Take it from a certified scuba diver on the dangers of CO2.
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