receptor-mediated endocytosis (https://biologywise.com/mechanism-of-receptor-mediated-endocytosis-explained https://biologywise.com/mechanism-of-receptor-mediat

receptor-mediated endocytosis (https://biologywise.com/mechanism-of-receptor-mediated-endocytosis-explained https://biologywise.com/mechanism-of-receptor-mediated-endoc...) is the process by which the body begins to ignore a persistent stimulus (notably, smell). i'm not sure if there's a long-term version of this, though.