Up Next
Back to Show
It's Okay to Be Smart
Why Do We Itch?
Season 6
Episode 12
It’s one of the most annoying sensations our bodies can feel, but does anything feel better than when you scratch an itch? Ok, maybe *some* things. But itching and scratching are up there. How does this weird sensation work? And what is itching for?
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
15:07
We learn how spider vision works.
12:44
Let's learn the story of one of the worst natural disasters that’s ever happened!
27:56
We learn about all the reasons that Earth’s climate changes, natural and otherwise.
12:31
Turns out, we can blame it all on neutron stars and some oddities of the periodic table.
10:00
Join Joe in this whirlwind tour of the endocrine system to find the answers.
8:29
Is Everest the tallest mountain on Earth? The answer is not as simple as you might think.
17:59
Turns out we’re all at risk of being overconfident about something.
19:10
There's an absolutely weird, but surprisingly common phenomenon called sensory adaptation.
11:50
Scientists in Florida can recreate a Category 5 hurricane in a box the size of a bedroom.
10:41
Are humans still evolving? And how have our technological advances affected the process?
19:07
Illusions teach us how our brain constructs a three-dimensional reality using 2-D images.
22:18
Joe talks biology with science communicator extraordinaire Prof. Brian Cox.