The Big Why: Body Edition
Solving the mysteries of why your body acts so weird!
Why do you get goosebumps? Why does your skin wrinkle in the bath? Your body is a high-tech machine with a lot of strange 'glitches' that are actually clever tricks to keep you safe and healthy. This course explores the 'Big Why' behind hiccups, brain freezes, dreams, and more, making the complex world of human biology fun and easy to understand.
Topics
Brain Freeze: Why does ice cream make your head hurt?
Solve the mystery of the 'sphenopalatine ganglioneuralgia'—otherwise known as the ice cream headache.
Goosebumps: Why does your skin get bumpy?
Learn why your skin looks like a plucked chicken when you're cold or hear a spooky story.
Pruny Fingers: Why does skin wrinkle in the water?
Discover why your fingers turn into 'raisins' after a long swim or bath.
Contagious Yawns: Why do we copy each other?
Investigate why you can't stop yawning when you see someone else do it.
Scabs: Why does the body make a hard bandage?
Learn how your blood turns into a 'super-glue' shield to heal your cuts.
Hiccups: Why does your tummy make a 'hic' sound?
Solve the mystery of the tiny muscle spasm that makes you jump and chirp.
Dreaming: Why do our brains play movies at night?
Explore the secret world of your sleeping mind and how it cleans up your thoughts.
Fever: Why does your body get hot when you're sick?
Discover why a high temperature is actually your body's way of fighting off 'bad guy' germs.
Fingerprints: Why do we have swirls on our fingers?
Learn why no two people in the world have the same patterns on their fingertips.
The Funny Bone: Why does it tingle when you hit your elbow?
Investigate the strange 'electric' feeling you get when you bump your arm.
Dizziness: Why does the world spin when you stop moving?
Solve the mystery of your 'inner ear ocean' and how it tells you which way is up.
Sneezing: Why does your nose 'explode'?
Discover why your body uses a high-speed blast of air to clear the way.
Tears: Why do we cry when we are sad?
Investigate why your eyes turn on the waterworks when you feel strong emotions.
Earwax: Why do we have 'ear-butter'?
Learn why that sticky stuff in your ears is actually a protective superhero.
Blinking: Why do we blink without thinking?
Discover why your eyelids act like windshield wipers for your eyes.
Blushing: Why do your cheeks turn red?
Discover why your face gives away your secrets when you're embarrassed.
Stomach Growling: Why does your belly 'talk'?
Investigate the rumbles and gurgles that happen deep inside your digestive system.
Eyebrows: Why do we have hair above our eyes?
Discover how these two patches of hair protect your vision and help you talk.
Laughter: Why do we make 'ha-ha' sounds?
Explore the science of why your body shakes and giggles when something is funny.
Sunburn: Why does the sun turn skin red?
Learn how your skin tries to protect itself from invisible 'energy beams' from space.