06:33

Health

The ancient medical practice that persisted for too long

Lesson duration 06:33

98,877 Views

04:54

Health

This is the most common way to get head lice

Lesson duration 04:54

225,615 Views

10:03

Health

Why daylight is the secret to great sleep - Christine Blume

Lesson duration 10:03

91,789 Views

10:03

Health

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

Lesson duration 10:03

164,799 Views

10:07

Health

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

Lesson duration 10:07

237,960 Views

10:48

Health

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

Lesson duration 10:48

224,950 Views

06:48

Health

What actually causes high cholesterol?

Lesson duration 06:48

1,135,850 Views

05:52

Social Studies

The history of the world according to rats

Lesson duration 05:52

371,093 Views

05:26

Health

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

Lesson duration 05:26

6,831,889 Views

06:35

Health

The real reason polio is so dangerous

Lesson duration 06:35

644,064 Views

06:06

Science & Technology

How do heat waves affect your body?

Lesson duration 06:06

826,075 Views

05:20

Health

3 reasons why medications are so expensive in the US

Lesson duration 05:20

211,155 Views

05:33

Health

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

Lesson duration 05:33

1,055,755 Views

04:48

Design, Engineering & Technology

The deadliest thing in your kitchen

Lesson duration 04:48

282,159 Views

05:14

Health

What are warts — and how do you get rid of them?

Lesson duration 05:14

574,330 Views

04:31

Design, Engineering & Technology

How do gas masks actually work?

Lesson duration 04:31

612,643 Views

07:44

Health

Why is measles so contagious?

Lesson duration 07:44

230,836 Views

05:44

Social Studies

The diseases that changed humanity forever

Lesson duration 05:44

806,602 Views

04:37

Health

What would happen if everyone stopped eating meat tomorrow?

Lesson duration 04:37

1,135,178 Views

12:10

Science & Technology

Why mosquitoes bite some people more than others

Lesson duration 12:10

10,214,310 Views

12:52

Health

Is someone you love suffering in silence? Here's what to do - Gus Worland

Lesson duration 12:52

49,540 Views

06:26

Health

We can prevent the next epidemic

Lesson duration 06:26

402,580 Views

05:34

Health

Humans are all almost exactly the same... almost

Lesson duration 05:34

222,559 Views

13:18

Health

The most powerful woman you've never heard of - T. Morgan Dixon and Vanessa Garrison

Lesson duration 13:18

59,100 Views