When your head hurts, the pain isn't coming from your brain.
Your brain has no pain sensors at all — not a single one.
That's why some brain surgery happens while the patient is awake and talking.
You use your body every day, yet there's so much about it you never learn.
Body Trivia Quiz is a three-choice quiz that lets you explore the surprising
facts hidden inside your own body, one expedition at a time.
◆ What you get
【1】An "I never knew that" after every question
How fast a sneeze travels. How often you blink. How long it takes your bones
to renew themselves. These things happen inside your body every single day,
yet you'd never guess the answer. Every question comes with a full
explanation, so right or wrong, you walk away with something worth sharing.
【2】Widely believed "facts" get updated to what's actually true
"Sneezes travel 100 mph." "Swallowed gum stays in your stomach for seven
years." "Gut bacteria outnumber your own cells ten to one." These have been
repeated for years, but many have since been disproven or revised. This app
quizzes you on these outdated beliefs, then reveals what current research
actually shows — so you never repeat old myths as fact again.
【3】Every expedition mixes body parts, not just one
Five questions about the heart in a row gets old fast. Each expedition mixes
topics — brain, bones, blood, skin, senses, and more — so you never know
what's coming next. It feels like wandering through your own body.
【4】Your pace, whether you're new to this or already know a lot
・Beginner: the surprising side of things you learned in school
・Advanced: knowledge worth bragging about
・Expert: deep cuts that impress even trivia lovers
Start at whichever level catches your interest.
【5】Five questions per expedition — perfect for a spare moment
Questions come in "expeditions" of five, sized for a commute or a coffee
break. Your results are saved for every expedition, so you can come back and
chase a perfect score.
【6】Play instantly, no connection needed
Questions and explanations live on your device, so you can play anywhere.
No account, no login. Open it and start.
◆ Made for you if you
・want fun facts to bring up in conversation
・have simple curiosity about how your own body works
・want to replace half-remembered facts with what's actually true
・want your spare minutes to be worth more than idle scrolling
・would like to revisit science and biology without the heavy tone
◆ About the content
Every question is written and checked against public research institutions
and academic sources. Where old figures have been revised by newer research,
this app uses the current understanding.
The app is available in English as well as Japanese, German, French, Spanish and other languages. You can switch languages any time in the settings.
Your brain can't feel pain? You know less about your body than you think.