why does my beard stop growing once it gets to about two inches in length?
hair is dead, right? it's made from a bunch of dead cells, right? and because it's dead, it has no way of communicating back to the hair follicles in your skin, right?
so how do the hair follicles on my chin become aware that my beard has grown two inches, and then shut off/go inactive? how do my hair follicles become aware when i trim my beard down to one inch, and then start growing back to the maximum of two inches again?