Ang startle reflex (moro reflex) na yan ay super normal sa babies, lalo na newborn pa lang, karamihan sa newborns may ganitong reaction kapag biglaan o bigla nilang mabago position! A few of us mums noticed din yan sa aming babies, especially pag malalim ang tulog nila then suddenly nabigla. Pero if sobrang frequent siya or kung may kasama pang unusual movements, better check with your pediatrician just to be sure everything's okay, mommy.