Your body has elaborate mechanisms for maintaining this state of homeostasis, that is, things staying the same; the body stays the same, homeostasis.

你的身体有许多精妙的机制,来维持内稳态,也就是说体内物质不改变,身体状态不改变,这就是内稳态

耶鲁公开课 - 生物医学工程探索课程节选