Sources:
Margalit, L. (2016, April 17). What Screen Time Can Really Do to Kids' Brains. Retrieved April 19, 2017, from https://www.psychologytoday.com/blog/behind-online-behavior/201604/what-screen-time-can-really-do-kids-brains
Publications, H. H. (n.d.). Blue light has a dark side. Retrieved April 19, 2017, from http://www.health.harvard.edu/staying-healthy/blue-light-has-a-dark-side
Television Watching and “Sit Time”. (2016, April 13). Retrieved April 19, 2017, from https://www.hsph.harvard.edu/obesity-prevention-source/obesity-causes/television-and-sedentary-behavior-and-obesity/