2 doctors weighed in:

What are reasons why are fewer people left handed?

2 doctors weighed in
Dr. Aruna Bakhru
Internal Medicine
1 doctor agrees

In brief: Genetics

Read this article, it explains it well.
Thank you for a very good question.Why Are Some People Left-Handed? Being a righty or a lefty could be linked to variations in a network of genes that influence right or left asymmetries in the body and brain By Natasha Geiling smithsonian.com September 12, 2013 Read more: http://www.smithsonianmag.com/science-nature/why-are-some-people-left-handed-6556937/#8MFOVV7UsUKuu2BZ.99 Give the gift of Smithsonian magazine for only $12! http://bit.ly/1cGUiGv Follow us: @SmithsonianMag on Twitter

In brief: Genetics

Read this article, it explains it well.
Thank you for a very good question.Why Are Some People Left-Handed? Being a righty or a lefty could be linked to variations in a network of genes that influence right or left asymmetries in the body and brain By Natasha Geiling smithsonian.com September 12, 2013 Read more: http://www.smithsonianmag.com/science-nature/why-are-some-people-left-handed-6556937/#8MFOVV7UsUKuu2BZ.99 Give the gift of Smithsonian magazine for only $12! http://bit.ly/1cGUiGv Follow us: @SmithsonianMag on Twitter
Dr. Aruna Bakhru
Dr. Aruna Bakhru
Thank
Read more answers from doctors