Because this system is responsible for taking care of particular functions only when you have the time and energy to do it — like digesting food or excreting waste — it uses more specific, strategic signals.

因为只有当你有时间和精力去做的时候，这个系统才负责照顾特定的功能——比如消化食物或排泄废物，它使用更具体的、战略性的信号。