1.
Why Do Stupid People Think They're Smart? The Dunning Kruger Effect (animated)
https://www.youtube.com/watch?v=GJz66wm95-M&t=190s
2.
The High Price of Materialism
https://www.youtube.com/watch?v=oGab38pKscw
3.
How To Burn Fat
https://www.youtube.com/watch?v=ni5-3x6ofjc
4.
Why Being Nice Is Actually Bad for You
https://www.youtube.com/watch?v=6dStIOv2moM