加利福尼亚大学圣迭戈分校医学教授金•巴雷特对趣味科学网站记者说,健康的人类便便通常由70%的固体和30%的流体组成。巴雷特说,尽管个人的排便习惯不同,但男性和女性平均每天排便一次,排泄量平均约为400-500克。
Researchers have even identified the speed at which humans generally produce their poo: about 2 centimeters per second, Live Science previously reported. Constipation — being unable to move one's bowels — can lead to longer, or more uncomfortable bathroom sessions. However, the amount of time a person typically dedicates to unobstructed defecation is about 12 seconds per stool, and is uniform across many animal species regardless of their size, according to David Hu, an associate professor of mechanical engineering and biology at the Georgia Institute of Technology and Patricia Yang, a Georgia Tech doctoral candidate in mechanical engineering.
根据趣味科学网站此前的报道,研究人员甚至确定了人类排便的平均速度:大约每秒2厘米。便秘(难以排便)可能令人们在卫生间待的时间更长、更不舒服。然而,佐治亚理工学院机械工程和生物系副教授戴维•胡和机械工程学博士研究生帕特里夏•杨认为,每个人每次顺畅排便的时间大约是12秒,而且许多动物物种都是如此,无论其体型大小。
Starting with an average daily amount of about 400 grams, the total poop production in a week's time would be about 2.8 kilograms. In a year, a single person would yield about 145 kg of poop — just a little more than an adult panda weighs.
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