Fun Facts About The Human Body

6 Crazy Facts About the Human Body You Didn't Know

Your body is an incredible machine working 24/7!

• You have about 37 trillion cells — more than stars in many galaxies!
• Your heart beats over 100,000 times a day — that's billions in a lifetime.
• The human brain uses 20% of your body's energy even when resting.
• Skin is your largest organ and replaces itself every 10–30 days.
• You produce 25 million new cells every second — your body is constantly rebuilding!
• Earlobes have no biological purpose — they're just there (fun evolutionary leftover!).

Amazed yet? Dive deeper with our Human Body quizzes and see how much you know about yourself!