You Can't Lick Your Elbow

The pair of organs on either side of your nose is one of your top tools for receiving information from the world around you. Often, our eyes tell us just about everything we need to know. But there are certain situations when the eyes don't have it. Sometimes our eyes can deceive us - and we're better off keeping them closed.

Do you control your body - or does it control you? Your body's many automatic reflexes often make it feel like you're not in the driver's seat. If you've ever wanted to stop a sneeze, turn off your gag reflex, see without your glasses, hold your breath longer or be the last one to go pee, this is the You Can't Lick Your Elbow episode for you.

Your senses tell you about the world around you, but they can be easily fooled. Taste, smell, hearing, sight and touch are not only interrelated - but they're sometimes at war with each other. Learn the hacks you need to better coordinate and sharpen your senses - and change the way you perceive the world.

Do you control your body - or does it control you? Your body's many automatic reflexes often make it feel like you're not in the driver's seat, but National Geographic shows you some ways that you can still be the boss of you by stopping a sneeze, turning off your gag reflex, seeing without your glasses, or even holding your breath longer.