在日常生活中,人们对使用左手者称之为“左撇子”。左撇子的由来为什么有人是“左撇子”,这是目前科学界尚未揭开的谜之一。世界上将近2/3的左撇子为男性,而且有遗传性。有关研究表明:父母双方都是左撇子,其子女肯定有半数也是左撇子。但是,左撇子又并非完全是遗传所致。因为至少有84％的左撇子父母的孩子是右撇子;12％的孪生孩子中,一个为右撇,另一个为左撇子。 In everyday life, people use left-handed people as “lefties.” The Origin of Left-handed Why Some People Are “Left-handed” This is one of the mysteries that the scientific community has yet to unveil. Nearly two-thirds of the world’s left-handers are male and hereditary. The study shows that: both parents are left-handed children, and certainly half of their children are also left-handed. However, left-handed people are not entirely genetic. Because at least 84% of left-handed parents have right-handed children and 12% of twins have left-handed and left-handed.