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What Makes a Person ‘Left’ or ‘Right’ Handed?

Some people are left-handed because of how their brain works. Imagine your brain is like a team with two players: one on the left side and one on the right. If the left player is stronger, you might prefer using your left hand. This happens in about 1 out of every 10 people.

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Examples

  1. A child might prefer using their left hand to draw because it feels more natural.
  2. A person may write with their left hand while others use their right hands.
  3. Some people find it easier to throw a ball with their left hand.

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Categories: Biology · genetics,neuroscience,hand dominance