memes memes memes!

http://www.simplypsychology.org/classical-conditioning.html

http://psychcentral.com/encyclopedia/double-blind-study/

https://www.psychologytoday.com/blog/the-athletes-way/201301/cortisol-why-the-stress-hormone-is-public-enemy-no-1

https://explorable.com/stanley-milgram-experiment


https://www.psychologytoday.com/blog/valley-girl-brain/201504/the-four-types-attraction