Results come from Exumo's own index. Data from YouTube; Exumo is not affiliated with YouTube.

1. 15:52

   The biology of our best and worst selves | Robert Sapolsky

   TED · May 31, 2017 · 1.1M views

2. 10:49

   A tribute to nurses | Carolyn Jones

   TED · May 30, 2017 · 98.3K views

3. 7:06

   A summer school kids actually want to attend | Karim Abouelnaga

   TED · May 29, 2017 · 90.7K views

4. 9:07

   There’s No Shame in Taking Care of Your Mental Health | Sangu Delle

   TED · May 26, 2017 · 499.1K views

5. 9:34

   How (and why) Russia hacked the US election | Laura Galante

   TED · May 25, 2017 · 136K views

6. 12:49

   This is what democracy looks like | Anthony D. Romero

   TED · May 24, 2017 · 96.7K views

7. 15:31

   Behind the lies of Holocaust denial | Deborah Lipstadt

   TED · May 23, 2017 · 459.2K views

8. 14:34

   Science in service to the public good | Siddhartha Roy

   TED · May 22, 2017 · 53.4K views

9. 18:29

   On tennis, love and motherhood | Serena Williams and Gayle King

   TED · May 22, 2017 · 1.4M views

10. 13:57

    What You Can Do to Prevent Alzheimer's | Lisa Genova | TED

    TED · May 19, 2017 · 3.4M views

11. 6:27

    How fake news does real harm | Stephanie Busari

    TED · May 18, 2017 · 175.2K views

12. 11:04

    How I learned to read -- and trade stocks -- in prison | Curtis "Wall Street" Carroll

    TED · May 18, 2017 · 4.3M views

13. 15:08

    A doctor's case for medical marijuana | David Casarett

    TED · May 17, 2017 · 580.2K views

14. 10:35

    A video game to cope with grief | Amy Green

    TED · May 17, 2017 · 115.4K views

15. 15:26

    How radio telescopes show us unseen galaxies | Natasha Hurley-Walker

    TED · May 16, 2017 · 195.8K views

16. 29:29

    Chimamanda Ngozi Adichie: We Should All Be Feminists | TED

    TED · May 15, 2017 · 267.4K views

17. 12:47

    How do you build a sacred space? | Siamak Hariri

    TED · May 12, 2017 · 175.4K views

18. 17:52

    Thoughts on humanity, fame and love | Shah Rukh Khan | TED

    TED · May 11, 2017 · 11M views

19. 16:41

    Poetry, music and identity (with English subtitles) | Jorge Drexler | TED

    TED · May 10, 2017 · 1.7M views

20. 6:45

    A simple birth kit for mothers in the developing world | Zubaida Bai

    TED · May 10, 2017 · 42.5K views