Couldyourbestfriendmakeyoufat?Researcherswhohavestudied...
問題詳情：Couldyourbestfriendmakeyoufat?Researcherswhohavestudied“networks”ofobesity(肥胖)thinkso：theyfoundthatifsomeone'sfriendbecomesobese,thatperson'schancesofbecomingobeseincreasebymorethanhalf.B...