english: After this productive period, signals within the skin instruct some follicles to enter a new phase known as catagen, or the regressing stage, causing hair follicles to shrink to a fraction of their original length.
non_english: Nakon ovog produktivnog perioda, signali unutar kože navode neke folikule na početak nove faze koja se zove katagen, ili faza regresije, pri čemu se folikuli kose skupljaju na mali deo svoje prvobitne veličine.