Kurzgesagt - In a Nutshell
Season 9 Episode 14 - You Are Immune Against Every Disease
You are not a person, you are a planet, made of roughly 40 trillion cells. There is so much of you, that if your cells were human-sized, you would be as big as 20 Mount Everests. For your creepy-crawly inhabitants, this makes your body an ecosystem, rich in resources and warmth and space. A perfect place to move into and have a family. While some of these guests are welcome, most are not. Your immune system is the guardian of this planet, the force tasked with protecting yourself against the constant danger of invasion.
Episodes in Season 9
How Many People Did Nuclear Energy Kill? Nuclear Death Toll
11 min
What if the World turned to Gold? - The Gold Apocalypse
9 min
Do we Need Nuclear Energy to Stop Climate Change?
11 min
The Ultimate Guide to Black Holes
12 min
TRUE Limits Of Humanity – The Final Border We Will Never Cross
12 min
What Are You Doing With Your Life? The Tail End
10 min
The Day the Dinosaurs Died – Minute by Minute
12 min
How To Terraform Venus (Quickly)
13 min
The Largest Black Hole in the Universe - Size Comparison
14 min
How The Immune System ACTUALLY Works – IMMUNE
11 min
This Virus Shouldn't Exist (But it Does)
11 min
Can YOU Fix Climate Change?
16 min
What Dinosaurs ACTUALLY Looked Like?
12 min
You Are Immune Against Every Disease
12 min
Is Meat Really that Bad?
12 min
...And We'll Do it Again
11 min
Why We Should NOT Look For Aliens - The Dark Forest
12 min