A Stanford study says masks don't work to prevent covid and are detrimental to health overall. From Gateway Pundit:
The NCBI study begins with the following abstract:
Many countries across the globe utilized medical and non-medical facemasks as non-pharmaceutical intervention for reducing the transmission and infectivity of coronavirus disease-2019 (COVID-19). Although, scientific evidence supporting facemasks’ efficacy is lacking, adverse physiological, psychological and health effects are established. Is has been hypothesized that facemasks have compromised safety and efficacy profile and should be avoided from use. The current article comprehensively summarizes scientific evidences with respect to wearing facemasks in the COVID-19 era, providing prosper information for public health and decisions making.
The study concludes (emphasis added):
The existing scientific evidences challenge the safety and efficacy of wearing facemask as preventive intervention for COVID-19. The data suggest that both medical and non-medical facemasks are ineffective to block human-to-human transmission of viral and infectious disease such SARS-CoV-2 and COVID-19, supporting against the usage of facemasks. Wearing facemasks has been demonstrated to have substantial adverse physiological and psychological effects. These include hypoxia, hypercapnia, shortness of breath, increased acidity and toxicity, activation of fear and stress response, rise in stress hormones, immunosuppression, fatigue, headaches, decline in cognitive performance, predisposition for viral and infectious illnesses, chronic stress, anxiety and depression. Long-term consequences of wearing facemask can cause health deterioration, developing and progression of chronic diseases and premature death. Governments, policy makers and health organizations should utilize proper and scientific evidence-based approach with respect to wearing facemasks, when the latter is considered as preventive intervention for public health.
I can hardly speak to some of the subtler respiratory or chemical reactions cited there, but for the more blatant, macro level symptoms I have to wonder- if one has some of those just from wearing a mask, might one not already have sufficiently serious breathing or neurological problems that one should not be outside? I'm 50, diabetic and with HBP [both controlled with pills], and have been wearing masks for a year, although we don't have to wear them outside unless we want to. I do notice that breathing gets shallower climbing stairs and such, but again we are lucky here that we don't have to wear them outside so I can take it off. I'd be doing less energetic outside exercise if I had to wear the mask the whole time.
Lou the cheap beer sommelier
This study is silly and obsolete. Everyone knows that ONE mask is ineffective. TWO masks are considered the best way to keep humans, animals, plants, and trees all safe. In light of this known truth I think it's best to be safe than not safe (i.e., "sorry") therefore I advise all my students and patients to do what I do: wear ten masks. After all, we need to be safe from this scourge that has a 99.98% survival rate.
I'm not sure but I believe that the NCBI and Stanford disavow this.