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随着气候的变冷,有人喜欢戴帽子,有人喜欢戴口罩,戴帽子能防止人体热量散失,而戴口罩却不一定有好处。戴口罩防寒,其实反而会降低人的御寒能力。人的鼻腔里血管很多,有许多
Some people like to wear masks as they cool down. Some people like to wear masks and hats to prevent the body from losing heat. However, wearing masks may not be beneficial. Wear a mask cold, but in fact will reduce the ability of people to keep warm. Many people have many blood vessels in the nasal cavity