Ma'anar ƙamus na kalmar "relaxin" wani hormone ne da aka samar a lokacin daukar ciki kuma yana da hannu wajen tausasa nama a cikin yankin ƙashin ƙugu, yana ba da damar samun sassauci da sauƙi na haihuwa. Ana kuma gano cewa yana da tasiri ga sauran sassan jiki, ciki har da tsarin zuciya da jijiyoyin jini da kuma tsarin juyayi.
