A stressor is anything in the environment that knocks the body out of homeostasis, and the stress response is the array of physiological adaptations that ultimately reestablishes balance.

• 所谓的压力源，指的是使身体偏离恒定状态的任何环境因子，而压力反应则是一系列的生理适应，终究将重建身体的平衡状态。