04:54

Health

This is the most common way to get head lice

Lesson duration 04:54

179,749 Views

10:03

Health

Why daylight is the secret to great sleep - Christine Blume

Lesson duration 10:03

84,011 Views

10:03

Health

Which species would you get rid of? | Ada, Ep. 5

Lesson duration 10:03

145,036 Views

05:20

Psychology

Can you "see" images in your mind? Some people can't

Lesson duration 05:20

1,041,401 Views

10:07

Health

Should we get rid of pregnancy? | Ada, Ep. 3

Lesson duration 10:07

214,388 Views

10:48

Health

Would you sell your kidney for $100,000? | Ada, Ep. 2

Lesson duration 10:48

204,294 Views

05:00

Psychology

Why you feel stuck — and how to get motivated

Lesson duration 05:00

666,934 Views

06:48

Health

What actually causes high cholesterol?

Lesson duration 06:48

931,555 Views

05:52

Social Studies

The history of the world according to rats

Lesson duration 05:52

347,242 Views

06:31

Health

One of the most controversial medical procedures in history

Lesson duration 06:31

637,342 Views

05:26

Health

Do you really need to take 10,000 steps a day?

Lesson duration 05:26

6,077,392 Views

04:59

Psychology

How some friendships last — and others don’t

Lesson duration 04:59

932,291 Views

05:18

Health

How does kidney transplant surgery work?

Lesson duration 05:18

250,766 Views

06:35

Health

The real reason polio is so dangerous

Lesson duration 06:35

576,369 Views

06:06

Science & Technology

How do heat waves affect your body?

Lesson duration 06:06

565,698 Views

05:20

Health

3 reasons why medications are so expensive in the US

Lesson duration 05:20

203,299 Views

05:37

Science & Technology

This mushroom will kill you before you know what’s happening

Lesson duration 05:37

876,272 Views

05:49

Social Studies

What is hysteria, and why were so many women diagnosed with it?

Lesson duration 05:49

433,447 Views

05:33

Health

What’s the best way to treat the common cold?

Lesson duration 05:33

1,013,816 Views

12:24

Health

11 things that can change your eye color

Lesson duration 12:24

757,328 Views

04:48

Design, Engineering & Technology

The thing in your kitchen most likely to kill you

Lesson duration 04:48

273,852 Views

05:28

Science & Technology

How do animals regrow their limbs? And why can't humans do it?

Lesson duration 05:28

533,327 Views

05:38

Health

What does appendix pain feel like?

Lesson duration 05:38

1,205,286 Views

04:47

Health

Why is it so dangerous to step on a rusty nail?

Lesson duration 04:47

5,276,785 Views