Endorphins are are often called “feel-good” chemicals, as they relieve pain and stress and produce a “high” feeling. They are made primarily by the hypothalamus and pituitary gland and work by binding to the opioid receptors in our brain, much like opioid drugs do.Holland, J. (2015) Moody Bitches. New York: Penguin, p. 345. Biggers, A. (2018). Endorphins: Effects and how to boost them. [online] Medical News Today. Available at: https://www.medicalnewstoday.com/articles/320839.php [Accessed 16 Oct. 2018].