Why Are Most People Right-Handed? Mystery Finally Solved!

Scientists have figured out why most humans are right-handed, and it's because of two amazing changes that happened to our ancestors over millions of years: learning to walk on two legs and growing bigger brains! As humans evolved, they used their right hands more and more, until today most people are right-handed. Now you know why you might write with your right hand — it's written into your DNA from ancient times!