new, dad, internal, medicine, physician, heath, chung, with, his, month-old, daughter, lucy, changes, s, diapers, he, said, friend, showed, him, how, prepares, bottle, while, wife, tanya, plays, shows, first, wasn, t, sure, to, use, support, pillow, as, chuckles, four-month-old, has, forever, changed, lives, her, parents, florin, kept, occupied, background, feeds, looks, worries, about, things, she, says, worry, day-to-day