<span>mA (millamps) x Time (seconds) = mAs</span>
I think that it's important because it gives the brain a time to register than you're done. Also prevents you from overeating.
Homeostasis is the state of balance. The body will try to get rid of the poison in your body one way or another, and acne can be a result of an excess amount of poison.
Basically, acne is a response to the stimulus of excess poison.