26 raring2go.co.uk Raring2go! Making Science Fun! 10 FACTS ABOUT HUMANS Here are 10 fun and fascinating facts about humans: 1. Super Brain The human brain has about 86 billion neurons and can generate more electrical impulses in a single day than all the telephones in the world combined! 2. Unique Fingerprint No two people have the same ngerprints—not even identical twins. Your ngerprints are uniquely yours and are formed before you’re born. 3. Hair Growth Human hair grows about 6 inches per year on average. Interestingly, it grows faster during the summer because of increased blood circulation. 4. Strongest Muscle Pound for pound, the masseter (jaw muscle) is the strongest muscle in the human body. It can generate a force of up to 200 pounds on your molars! 5. Body Heat The human body produces enough heat in 30 minutes to boil about half a gallon of water. This is due to constant chemical reactions happening within us. 6. Walking Distance On average, a person will walk the equivalent of ve times around the Earth during their lifetime if they maintain moderate activity levels. 7. Multi-Tasking Eyes Your eyes can distinguish about 10 million colours and process visual information in mere milliseconds. ere milliseconds. They are among the most complex organs in your body. 8. Regenerating Cells The human body replaces about 330 illion cells every day, meaning that roughly 1% of your body’s cells e regenerated daily. 9. Bones Change Over Time Babies are born with about 270 bones, ey grow, some fuse together, leaving adults with 206 bones. 10. Laughter Medicine Laughter is a natural stress reliever and immune It can increase oxygen ow, improve circulation, and release hins—the body’s “feel-good” chemicals. s are truly fascinating and full of surprises! 7 c T 8 bi are 9. Bon but as the 10. Laugh booster. endorph Humans
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