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Science Fun!

Why Are You Right-Handed or Left-Handed?

Do you know that more than 90% of the world is right-handed?But, there are more left-handed peoples than ever before. One of the main reasons for this is that years ago, teachers forced left-handed kids to write with their right hand! They were told that was the correct way. Actually, being left-handed is perfectly alright and totally natural.

What makes a person left or right handed? Scientists are not sure and not all agree on the answer. They have noted however, that being left-handed runs in families. So the hypothesis or guess is that your genes or DNA influences whether or not you turn out to be left-handed or right-handed. Many scientists also believe that most people’s brains develop more on one side than on the other. And since the left side of your brain controls the muscles on the right side of your body, and the right side of your brain controls the left side of your body, this could influence the muscles in your hands as well. If the left side of your brain is more developed, than you are right-handed. If the right side of your brain is more developed, then you are left-handed. If your brain is equally developed on both sides, you are ambidextrous which means you can use one hand as well as the other.

Sometimes getting hurt can also make a person left-handed or right-handed. If you injure your hand and can’t use it anymore, you become the opposite of the injured hand...

Read more about Why Are You Right-Handed or Left-Handed in today’s Science Fun!

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