Anewstudysaysonepartofthehumanbrainmaybecomesmallerasth...
问题详情：Anewstudysaysonepartofthehumanbrainmaybecomesmallerastheresultofaconditionknownasjetlag.Jetlagresultsfromflyinglongdistancesinanairplane.Peoplewithjetlagfeelextremelytiredforseveraldays.Theyma...