"It could have to do with race," Chang says. Although the reason has not yet been discovered, the fact that the trend has been common among all Asians in recent years means it is probably related to ethnicity.
「可能是種族的關係，」張金堅指出，目前尚未找到真正的原因，但從亞洲黃種人近年都有此趨勢來看，應該與種族有關。