Physical Fitness
What happens to your body when you start exercising regularly
lesson duration 04:19
8,397,640 views
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2,080,206 views
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Philosophy & Religion
I grew up in the Westboro Baptist Church. Here's why I left - Megan Phelps-Roper
lesson duration 15:18
6,552,566 views
5,510,962 views
348,092 views
4,778,203 views
4,127,660 views
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457,550 views
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Psychology
My descent into America’s neo-Nazi movement— and how I got out - Christian Picciolini
lesson duration 20:19
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2,814,283 views
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478,355 views
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547,824 views
Thinking & Learning
How boredom can lead to your most brilliant ideas - Manoush Zomorodi
lesson duration 16:14
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11,252,072 views
Health
What you should know about vaping and e-cigarettes - Suchitra Krishnan-Sarin
lesson duration 14:30
321,437 views
383,783 views
1,465,290 views