人们在正常的生活环境中,对时间的识别很容易,也很自然,但若处在一个封闭的环境中不依赖外界的情况下,人是否还具有识别时间的本领呢?为此,科学家们不带钟表在一个几乎与世隔绝的山洞里生活了几个月。他们对自己的体温、脉搏、血压、呼吸、脑部生物电曲线以及生活作息等作了详? People in the normal living environment, the identification of time is easy and natural, but if in a closed environment does not depend on the outside world, whether people have the ability to identify the time? To this end, scientists Months without a watch in an almost isolated caves. They made a detailed survey of their own body temperature, pulse, blood pressure, respiration, brain bioelectricity curves and living habits.