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Could You Ever Be Immune To EVERY Disease?

Our bodies hold many levels of immune defense.Physical barriers like skin, the innate immune system, and our body’s most powerful defender, the adaptive immune system. Millions of B cells and T cells and antibodies are constantly on patrol for germs and antigen invaders. As scientists learn more about how this system works and how to engineer it, could we ever actually be immune to everything?
Season 6 Episode 6 Length 06:13 Premiere: 03/07/18

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Season 6 Episodes

The Most Extreme Life Forms On Earth… And Beyond?
S6 E39 Length 05:24 Premiere Date 02/26/18

How to Figure Out the Day of the Week For Any Date Ever
S6 E38 Length 05:29 Premiere Date 01/16/18

Why Do We Itch (ASL)
S6 E37 Length 04:59 Premiere Date 05/18/18

Where Did Life Come From? (feat. PBS Space Time and Eons!)
S6 E37 Length 12:47 Premiere Date 05/07/18

Do Fish Pee?
S6 E36 Length 04:53 Premiere Date 12/27/18

Does Someone Else Have Your Face?
S6 E35 Length 12:42 Premiere Date 12/14/18

The Raisin Bran Effect
S6 E34 Length 05:19 Premiere Date 11/30/18

Can We Get Older Without Aging?
S6 E33 Length 08:53 Premiere Date 11/21/18

The Dinosaur On Your Thanksgiving Table
S6 E32 Length 10:16 Premiere Date 11/15/18

What is Farthest Away?
S6 E31 Length 06:08 Premiere Date 11/06/18

The Deadliest Flu Season in History?
S6 E30 Length 07:41 Premiere Date 10/31/18

The Largest River On Earth Is In The Sky
S6 E29 Length 05:30 Premiere Date 10/23/18

Where Do Teeth Come From?
S6 E28 Length 06:40 Premiere Date 10/09/18

What Do Raindrops Really Look Like?
S6 E27 Length 05:24 Premiere Date 09/25/18

Is Height Genetic?
S6 E26 Length 06:07 Premiere Date 09/18/18

Will You Still Eat Raw Fish After Watching This Video?
S6 E25 Length 06:33 Premiere Date 09/11/18

How Habits are Formed
S6 E24 Length 05:48 Premiere Date 09/04/18

How Some Words Are Forgotten
S6 E23 Length 10:49 Premiere Date 08/14/18

Why Do Disney Princesses All Look Like Babies?
S6 E22 Length 06:05 Premiere Date 08/07/18

Proof of Evolution Is Hiding in Your DNA
S6 E21 Length 08:03 Premiere Date 07/24/18

Why Do We Cry?
S6 E20 Length 04:20 Premiere Date 07/17/18

The Surprising Reason We Eat Spicy Food
S6 E19 Length 05:37 Premiere Date 07/10/18

The Science of Farts
S6 E18 Length 05:07 Premiere Date 06/26/18

Biomass - How Much Does Life on Earth Weigh?
S6 E17 Length 06:24 Premiere Date 06/20/18

What’s The Hottest Hot and Coldest Cold?
S6 E16 Length 05:11 Premiere Date 06/12/18

The Strange Evolutionary Story of the Thylacine
S6 E15 Length 07:48 Premiere Date 06/05/18

Where Did Earth's Water Come From?
S6 E14 Length 04:13 Premiere Date 05/22/18

This Salamander Can Regrow Limbs Like Deadpool
S6 E13 Length 07:16 Premiere Date 05/18/18

Why Do We Itch?
S6 E12 Length 04:59 Premiere Date 05/08/18

How Your Memory Works
S6 E11 Length 08:19 Premiere Date 05/01/18

97% of Climate Scientists Really Do Agree
S6 E10 Length 06:35 Premiere Date 04/19/18

Where Did Life Come From?
S6 E9 Length 12:46 Premiere Date 04/11/18

How To Bend Light Using Just Your Finger
S6 E8 Length 08:10 Premiere Date 04/03/18

Could You Ever Be Immune To EVERY Disease?
S6 E6 Length 06:13 Premiere Date 03/07/18

Why Are There As Many Males As Females?
S6 E5 Length 05:19 Premiere Date 02/22/18

How to Defuse the Overpopulation Bomb
S6 E4 Length 07:49 Premiere Date 02/13/18

Tuatara Time! – Face To Face With A Living Fossil!
S6 E3 Length 08:15 Premiere Date 02/07/18

Extreme Microbes Are Eating The Titanic
S6 E2 Length 05:24 Premiere Date 01/30/18

How to Figure Out the Day of the Week For Any Date Ever
S6 E1 Length 05:32 Premiere Date 01/16/18

Why Is Blue So Rare In Nature?
S6 E1 Length 08:06 Premiere Date 01/09/18

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