With Valentine’s Day coming up this weekend it’s a good time to look at science and statistics related to the day. The fun video below from Joe Hanson tries to explain why humans kiss, the history of symbols associated with kissing, and some cultural views of kissing …

©2014 by Joe Hanson, It’s Okay to be Smart

Ah, romantic love; beautiful and intoxicating, heart-breaking and soul-crushing … often all at the same time! If romantic love has a purpose, neither science nor psychology has discovered it yet – but over the course of history, some of our most respected philosophers have put forward some intriguing theories. Skye C. Cleary outlines five of these philosophical perspectives on why we love in another fun to watch video.

A ©2016 TEDed original lesson by Skye C. Cleary