许多年轻父母，婴儿一哭就抱，久而久之形成了条件反射．哭叫就是要人抱着走动摇晃。其实让婴儿适当哭闹一下，却是有益无害的。婴儿哭叫能起到保护眼睛的作用。能使眼睛润滑，保证眼球的正常运转，还能把眼睛中的灰尘、细菌和废物排泄到眼睛之外，起到洁眼作用；还能提高睫状 Many young parents, the baby crying on the hold, the passage of time formed a conditioned reflex. Crying is someone holding walking shaking. In fact, let the baby cry properly, but it is beneficial and harmless. Baby crying can play a role in protecting the eyes. Can make the eye lubrication, to ensure the normal operation of the eye, but also the eyes of dust, bacteria and waste excretion to the eyes, play a role in cleansing eyes; also improve ciliary