688694 Mathias Basner, email to the author, March 26, 2015.
689695 Jen Christensen, «Warning Labels on Your Light Bulbs,» CNN, June 9, 2015, http://www.cnn.com.
690696 Laura Beil, «In Eyes, a Clock Calibrated by Wavelengths of Light,» The New York Times, July 4, 2011, http://www.nytimes.com.
691697 Justin Gmoser and Alana Kakoyiannis, «This Is What Happens to Your Brain and Body When You Check Your Phone Before Bed,» Business Insider, February 17, 2015, http://www.businessinsider.com.
692698 «Trends in Consumer Mobility Report.»
693699 Alexis Sobel Fitts, «Teens Obsessed with Facebook May Struggle with Anxiety, Sleep Problems,» The Huffington Post, September 14, 2015, http://www.huffingtonpost.com.
694700 Ibid.
695701 S. H. Onen, F. Onen, D. Bailly, and P. Parquet, «Prevention and Treatment of Sleep Disorders Through Regulation of Sleeping Habits,» La Presse Medicale 23 (1994): 485–89.
696702 «Touch,» National Sleep Foundation, http://www.sleepfoundation.org; «How to Sleep Comfortably Through Hot Summer Nights,» National Sleep Foundation, http://www.sleepfoundation.org.
697703 Onen et al., «Prevention and Treatment of Sleep Disorders Through Regulation of Sleeping Habits.»
698704 Lindsay Holmes, «Why We Sleep Better in Cooler Climates,» The Huffington Post, March 30, 2015, http://www.huffingtonpost.com.
699705 Rodney K. Dishman, Xuemei Sui, Timothy S. Church, Christopher E. Kline, Shawn D. Youngstedt, and Steven N. Blair, «Decline in Cardiorespiratory Fitness and Odds of Incident Sleep Complaints,» Medicine & Science in Sports & Exercise 47 (2015): 960–66.
700706 Molly Berg, «UGA Study Links Declining Fitness, Sleep Complaints,» University of Georgia press release, October 6, 2014, http://www.news.uga.edu.
701707 «Study: Physical Activity Impacts Overall Quality of Sleep,» Oregon State University News & Research Communications press release, November 22, 2011, http://www.oregonstate.edu.
702708 «Yoga, Running, Weight Lifting, and Gardening: Penn Study Maps the Types of Physical Activity Associated with Better Sleep Habits,» Penn Medicine press release, June 4, 2015, http://www.uphs.upenn.edu.
703709 Markham Heid, «You Asked: Is It Better to Sleep In or Work Out?» TIME, June 10, 2015, http://www.time.com.
704710 Kelly Glazer Baron, Kathryn J. Reid, and Phyllis C. Zee, «Exercise to Improve Sleep in Insomnia: Exploration of the Bidirectional Effects,» Journal of Clinical Sleep Medicine 9 (2013): 819–24.
705711 Kim Painter, «Exercising Close to Bedtime is OK, Sleep Experts Say,» USA TODAY, March 4, 2013, http://www.usatoday.com.
706712 Christopher Drake, Timothy Roehrs, John Shambroom, and Thomas Roth, «Caffeine Effects on Sleep Taken 0, 3, or 6 Hours Before Going to Bed,» Journal of Clinical Sleep Medicine 9 (2013): 1195–200.
707713 «Insomnia: Studies Suggest Calcium and Magnesium Effective,» Medical News Today, September 8, 2009, http://www.medicalnewstoday.com; Deborah Enos, «3 Nutrients Linked with a Better Night's Sleep,» Live Science, July 24, 2013, http://www.livescience.com; Jessica Lewis, «Vitamins That Help You Sleep,» Livestrong, June 22, 2015, http://www.livestrong.com.
708714 Ann Liu, Russell Tipton, Weihong Pan, John Finley, Alfredo Prudente, Namrata Karki, Jack Losso, and Frank Greenway, «Tart Cherry Juice Increases Sleep Time in Older Adults with Insomnia,» The Journal of the Federation of American Societies for Experimental Biology 28 (2014): Supplement 830.9.
709715 Jamie A. Koufman, «The Dangers of Eating Late at Night,» The New York Times, October 25, 2014, http://www.nytimes.com.