Masks are bad for you
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Physio-metabolic and clinical consequences of wearing face masks
Discussion: Masks interfered with O2-uptake and CO2-release and compromised respiratory compensation. Though evaluated wearing durations are shorter than daily/prolonged use, outcomes independently validate mask-induced exhaustion-syndrome (MIES) and down-stream physio-metabolic disfunctions. MIES can have long-term clinical consequences, especially for vulnerable groups. So far, several mask related symptoms may have been misinterpreted as long COVID-19 symptoms. In any case, the possible MIES contrasts with the WHO definition of health.
Conclusion: Face mask side-effects must be assessed (risk-benefit) against the available evidence of their effectiveness against viral transmissions. In the absence of strong empirical evidence of effectiveness, mask wearing should not be mandated let alone enforced by law.
This is one of a few articles saying that mask-wearing is unhealthy.
Had to look at them askance, for as someone who wore masks ALL THE TIME for almost 40 years, I never noticed any bad effects.
And, so, the article has been, over the authors' objections, retracted.
the article does not meet the standards of editorial and scientific soundness for Frontiers in Public Health