May 11, 2020 | KYODO NEWS | “…In China, at least two junior high school students collapsed and died last month while wearing face masks during physical exercise examinations. The deaths have prompted experts to warn of the dangers of wearing high-grade masks during intense exercise, which could lead to oxygen deficiency.”   Medical experts have … Continue reading Fears grow over heat exhaustion caused by wearing masks in summer; Another pleurisy patient from mask-wearing