What Part Of Your Body Contains About 25% Of Your Bones? Arms Feet Spine Skull Did You Know! Muscles Can “Learn”: Muscles can “remember” previous activity levels and adapt to…

How Often Does Your Stomach Lining Replace Itself? Every week Every 30 days Every 3–4 days Every 6 months Did You Know! Your Smallest Muscle is in Your Ear: The…

What Household Item Has More Bacteria Than A Toilet Seat? Kitchen sponge TV remote Cell phone Doorknob Did You Know! The Heart is a Muscle, But It Doesn’t Get Tired…

What Bodily Process Is Louder When You're Lying On Your Left Side? Digestion Heartbeat Breathing Snoring Did You Know! The Spine Can Trigger a Full-Body “Fight or Flight” Response

Which Part Of Your Body Contains The Smallest Bones? Fingers Toes Nose Ear Did You Know! You’re Taller in the Morning – Because of Your Spine

What Happens To Your Pupils When You're Excited? Shrink Dilate Blink faster Turn bright Did You Know! Your Spine Has a Built-In “Brain”

What’s The Average Number Of Hairs A Person Loses Daily? 10–30 50–100 200–300 500+ Did You Know! Your Longest Nerve Runs All the Way to Your ToesThe sciatic nerve is…

What Part Of Your Body Gets Oxygen Directly From Air? Cornea Tongue Skin Ear cartilage Did You Know! You Have a “Second Brain” in Your GutYour intestines are lined with…

What Gives Carrots Their Orange Color And Helps Vision? Lycopene Iron Beta-carotene Chlorophyll Did You Know! Nerves Can Regrow—But Very SlowlyWhile the central nervous system (brain and spinal cord) has…