n.p. “Mental Health Disorders.” Curiosity.com. Retrieved on http://curiosity.discovery.com/question/how-does-melatonin-work

Breus, Ph.D., Michael J. (2011, February 22). “Melatonin: Not a Magic Bullet for Sleep.” Psychology Today. Retrieved from http://www.psychologytoday.com/blog/sleep-newzzz/201102/melatonin-not-magic-bullet-sleep\

Christian Nordqvist. (2011, August 2). "What Is Melatonin?." Medical News Today. Retrieved from
http://www.medicalnewstoday.com/articles/232138.php.

n.p. (2012, September 28). "Melatonin Helps Hypertension Patients Sleep." Medical News Today. Retrieved from http://www.medicalnewstoday.com/articles/250864.php

McGill University Health Centre. (2011, December 15). "'Sleep Hormone' Discovery Leads To Novel Melatonin Drug With Potential To Treat Insomnia." Medical News Today. Retrieved from http://www.medicalnewstoday.com/releases/239179.php

University of Granada. (2009, November 6). "The Consumption Of Melatonin, A Natural Hormone Secreted By The Own Human Body, Regulates Sleep Better Than Somniferous." Medical News Today. Retrieved from http://www.medicalnewstoday.com/releases/170052.php

n.p. (2012, September 28). "Positive Effects In Alzheimer's To Melatonin And Exercise In Mouse Model." Medical News Today. Retrieved from http://www.medicalnewstoday.com/releases/250741.php.

University of Granada. (2011, April 29). "Melatonin Might Help In Controlling Weight Gain And Preventing Heart Diseases Associated To Obesity." Medical News Today. Retrieved from http://www.medicalnewstoday.com/releases/223671.php

International Federation of Fertility Societies. (2010, September 15). "Study Shows Melatonin Almost Doubles IVF Success Rate In Women With Poor Egg Quality." Medical News Today. Retrieved from http://www.medicalnewstoday.com/releases/201071.php