Evidence suggests that although left-handedness is partly because of genetics, there are other factors that contribute to the condition. Experts have identified a connection between a gene called LRRTM1 and left-handedness; its presence on the father's side of the family might increase the chances of a person being a left-hander. People who have the gene do not automatically become left-handed, however. In fact, research into identical twins has shown that if one is left-handed, there is a 76% chance that the other will be, too.
More about left-handedness:
- About 10% of the population is left-handed
- As of 2012, there had been at least six US presidents who were known to be left-handed: Barack Obama, Bill Clinton, George H.W. Bush, Gerald Ford, Harry Truman and Herbert Hoover. In addition, Ronald Reagan and James Garfield were ambidextrous. Earlier US presidents might have been left-handed as well, but there was little mention of handedness for presidents before the 20th century.
- Machines, furniture and appliances are primarily designed for right-handed people, so left-handers have a higher risk of accidents and injuries. For example, left-handed people are 85% more likely to get into automobile accidents.
By Lainie Petersen
, Former Writer
Lainie Petersen, a talented writer, copywriter, and content creator, brings her diverse skill set to her role as an editor. With a unique educational background, she crafts engaging content and hosts podcasts and radio shows, showcasing her versatility as a media and communication professional. Her ability to understand and connect with audiences makes her a valuable asset to any media organization.