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人体每小时脱落60万个上皮细胞,每年丧失的皮肤就达0.68公斤。活到70岁时,将失去47.7公斤皮肤细胞。人体每天脱落头发约45根,有些人可达60
The human body shed 600,000 epithelial cells per hour, losing 0.68 kilograms of skin each year. Live to 70 years old, will lose 47.7 kg of skin cells. The body sheds about 45 hairs daily, some up to 60