28

Cuddle Up to Me, http://cuddleuptome.com.

29

Nicholas A. Christakis and James H. Fowler, “Dynamic Spread of Happiness in a Large Social Network: Longitudinal Analysis over 20 Years in the Framingham Heart Study,” Digital Access to Scholar ship at Harvard, British Medical Journal 337, no. a2338 (2008), www.bmj.com/content/337/bmj.a2338.

30

Randy Taran, “The Alphabet of Happiness: ‘P,’” The Huffington Post, December 6, 2017, www.huffingtonpost.com/randytaran/thealphabetofhappiness_4_b_5684891.html.

31

Sarah Green, “Posttraumatic Growth and Building Resilience,” Harvard Business Review, March 30, 2015, https://hbr.org/2011/03/posttraumaticgrowthandbuil.

32

Lorna Collier, “Growth After Trauma,” Monitor on Psychology 47 no. 10, American Psychological Association, November 2016, www.apa.org/monitor/2016/11/growthtrauma.aspx.

33

Ginny Graves, “Is There an Upside to Tragedy?” Oprah.com, July 2015, www.oprah.com/inspiration/posttraumaticgrowth/all.

34

Allan V. Horwitz and Jerome C. Wakefield, The Loss of Sadness: How Psychiatry Transformed Normal Sorrow into Depressive Disorder (Oxford: Oxford University Press, 2012).

35

Bruce Y. Lee, “Antidepressants Found in the Great Lakes and Fish,” Forbes, September 4, 2017, www.forbes.com/sites/brucelee/2017/09/04/antidepressantsfoundinthegreatlakesandfish/#46cc617b87db.

36

Jean M. Twenge, Thomas E. Joiner, Megan L. Rogers, and Gabri elle N. Martin, “Increases in Depressive Symptoms, Suiciderelated Outcomes, and Suicide Rates Among U.S. Adolescents After 2010 and Links to Increased New Media Screen Time,” Clinical Psychological Science 6, no. 1 (2017): 3–17, https://doi.org/10.1177/2167702617723376., http://journals.sagepub.com/eprint/qeIxKSaE5auQCM8Pfb4Z/full.

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