Graphic source: https://twitter.com/WebMD/status/1279761953896923137
Graphic source: https://www.webmd.com/sleep-disorders/ss/slideshow-signs-not-enough-sleep
Graphic source: https://www.sixstepstosleep.com/understanding-the-sleep-cycle-stages-of-sleep-infographic/
Graphic source: https://www.aaafoundation.org/sites/default/files/SleepImpactCrashRiskLarge.jpg
Graphic source: http://www.forbes.com/sites/tanyamohn/2016/12/11/drivers-who-miss-one-to-two-hours-of-sleep-double-their-crash-risk-new-report-finds/#1cd4c61832c8
Graphic source: https://www.sciencedaily.com/releases/2013/01/130127134212.htm
Graphic source: http://researchpaper-finch.weebly.com/sleep-deprived-learning.html