
STORY AT-A-GLANCE
Researchers found a robust relationship between mask wearing, low levels of blood oxygen, and increased levels of carbon dioxide (CO2), heart rate, humidity and systolic blood pressure
Clinical symptoms included headache, fatigue, shortness of breath and dizziness. High levels of CO2 reduce blood pH and may be associated with protein misfolding and altered interactions with nucleic acids, which is hypothesized to lead to diabetes, osteoporosis, cancer and neurological disorders
In 2020, national experts on respiratory protection and infectious diseases said that while there was limited evidence of effectiveness, they still supported wearing masks in public. However, people should "not count on or expect" face coverings to protect them
There is a cost for ignorance, which may be paid for decades. Although population-wide mask mandates never made sense, the massive censorship and shutdown of healthy scientific debate was perhaps the most disturbing aspect of this masking debacle
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