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Why Are We Ticklish?

Our reaction to be tickled may be nature's way of encouraging self defence training from an early age.
Season 3 Episode 19 Length 03:28 Premiere: 04/20/17

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Season 3 Episodes

Do You Have an Inner Voice?
S3 E35 Length 03:42 Premiere Date 11/09/17

This Paradox Could Kill You
S3 E34 Length 03:57 Premiere Date 11/09/17

What Makes Someone a Night Owl?
S3 E33 Length 04:59 Premiere Date 08/25/17

Ways to Bring the Brain Dead ‘Back to Life’
S3 E32 Length 05:01 Premiere Date 08/11/17

Dissecting a Dinosaur Brain (sort of)
S3 E30 Length 05:27 Premiere Date 07/29/17

Your Biological Clock at Work
S3 E29 Length 02:42 Premiere Date 07/20/17

Your Brain In Virtual Reality
S3 E28 Length 05:45 Premiere Date 07/13/17

Are Older People Wiser?
S3 E27 Length 06:13 Premiere Date 07/06/17

How Smart Is Your Dog
S3 E26 Length 04:51 Premiere Date 06/29/17

100 LAYERS OF CREDIBILITY
S3 E25 Length 07:46 Premiere Date 06/23/17

THE PAOMNNEHAL PWEOR OF THE HMUAN MNID
S3 E24 Length 03:36 Premiere Date 06/15/17

How To Procrastinate Effectively
S3 E23 Length 03:39 Premiere Date 06/08/17

Mind Blowing Illusions That Trick Multiple Senses
S3 E22 Length 03:44 Premiere Date 06/01/17

The Quantum Power of the Human Nose
S3 E21 Length 04:33 Premiere Date 05/25/17

Do You Own Your Cells?
S3 E20 Length 04:32 Premiere Date 08/03/17

Why Are We Ticklish?
S3 E19 Length 03:28 Premiere Date 04/20/17

Gravity in Your Brain ft. Neil deGrasse Tyson!
S3 E18 Length 04:35 Premiere Date 04/13/17

Wiggle Your Big Toe
S3 E17 Length 02:52 Premiere Date 04/06/17

Can You Solve This Riddle?
S3 E16 Length 04:40 Premiere Date 03/30/17

Why do You Get a Brain Freeze?
S3 E15 Length 02:58 Premiere Date 03/23/17

Your Body on Carbs
S3 E14 Length 02:45 Premiere Date 03/16/17

What Do You Think is Normal?
S3 E13 Length 03:59 Premiere Date 03/02/17

Everything is Trying to Kill You
S3 E12 Length 03:49 Premiere Date 02/23/17

Valentine's Day Tips From the Animal World!
S3 E11 Length 04:34 Premiere Date 02/09/17

The Weird World of Animal Mating
S3 E10 Length 05:06 Premiere Date 03/04/17

Are You a Chronic Procrastinator?
S3 E9 Length 03:41 Premiere Date 02/28/17

How LEGO Helps Blind People See
S3 E8 Length 13:25 Premiere Date 02/21/17

Why People Fake Illness Online
S3 E7 Length 05:50 Premiere Date 02/14/17

The Automation Paradox
S3 E6 Length 05:29 Premiere Date 02/07/17

What Does a Secret Weigh?
S3 E5 Length 03:21 Premiere Date 01/23/17

The Evolutionary Advantages of Art
S3 E4 Length 06:24 Premiere Date 01/16/17

The Most Boring Video Ever
S3 E3 Length 03:58 Premiere Date 01/09/17

Should The Olympics Just Allow Doping?
S3 E2 Length 05:07 Premiere Date 12/11/16

A Venus Flytrap Works Just Like Your Brain
S3 E1 Length 03:38 Premiere Date 12/08/16

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