There's also sizeable variation in measurement amongst persons. Long lasting breast growth through puberty is because of estrogens along with the growth hormone. Female people are the only mammals that forever acquire breasts at puberty; all other mammals acquire their mammary tissue through the latter duration of pregnancy. Soon after https://grok.com/share/c2hhcmQtMw%3D%3D_5ad6450c-533d-442c-a09c-9f7bce1babfb