President Joe Biden (Courtesy WhiteHouse.gov)
(DAILY MAIL) -- Face masks may raise the risk of stillbirths, testicular dysfunction and cognitive decline in children, 'explosive' new research suggests.
A review of dozens of studies on face coverings suggested they can cause mild carbon dioxide poisoning when worn over long periods.
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The German academics who carried out the research believe masks create a pocket of dead space between the mouth and mask, which traps the toxic gas.
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