Bet You Can’t Get Half of These Human Body Facts Right—Prove You’re a Walking Encyclopedia!

Welcome to the ultimate challenge on the wonders of the human body! Did you know that your body is a complex machine with over 37 trillion cells, 206 bones, and systems that keep you alive in miraculous ways? From the tireless beating of your heart to the tiny cilia that clear your airways, the human body is full of fascinating facts that blend science, evolution, and everyday mysteries. This quiz tests your knowledge on everything from anatomy and physiology to quirky bodily responses and myths. Whether you're a biology buff or just curious about what makes you tick, these 40 questions will push your limits. Bet you can't score more than 50%—prove you're a walking encyclopedia by acing facts about muscles that never rest, why veins appear blue, and how stress affects your hair. Dive in and discover the incredible secrets your body holds!