Impossible Body Facts: Can You Separate Real From Fake?

The questions

All 10 questions in this quiz. Correct answers stay hidden until you finish.

1. 1

   Your left lung is slightly smaller than your right lung to make room for your heart

   • Real
   • Fake
2. 2

   Your brain generates about 20 watts of electricity — enough to power a dim LED

   • Fake
   • Real
3. 3

   The human body actually glows with visible light, but it is too faint for our eyes to detect

   • Real
   • Fake
4. 4

   You swallow about 8 spiders every year while you sleep

   • Fake
   • Real
5. 5

   Your eyes can distinguish approximately 10 million different colors

   • Real
   • Fake

Score bands

Your final score places you in one of these bands.

Myth BelieverGullible

You fell for most of these body myths — and honestly, who could blame you? They are everywhere. Next time you hear a wild health claim, double-check before sharing!

Curious SkepticOn the Fence

You know some truths but got tripped up by a few persistent myths. A little more fact-checking and you will be unstoppable.

Fact DetectiveSharp Eye

Your science game is solid! Most myths could not fool you — just a hair away from perfection.

Myth BusterFlawless

Perfect! Your body knowledge outshines 99% of people. We bow to your fact-checking skills.

How this quiz works

Each question has one correct answer. When you finish, you get your score and can review every question with the correct answer and, where we have one, a short explanation.