1. Jennifer R. Piazza, Susan T. Charles, Martin J. Sliwinski, Jacqueline Mogle, and David M. Almeida, «Affective Reactivity to Daily Stressors and Long-Term Risk of Reporting a Chronic Physical Health Condition,» Annals of Behavioral Medicine 45, no. 1 (February 2013): 110-20, https://doi.org/10.1007/sl2160-012-9423-0; and Daniel K. Mroczek, Robert S. Stawski, Nicholas A. Turiano, Wai Chan, David M. Almeida, Shevaun D. Neupert, and Avron Spiro HI, «Emotional Reactivity and Mortality: Longitudinal Findings from the VA Normative Aging Study,» Journals of Gerontology: Series B 70, no. 3 (May 2015): 398–406. https://doi.org/10.1093/geronb/gbtl07.
2. K. Aschbacher, E. Epel, O. M. Wolkowitz, A. A. Prather, E. Puterman, and F. S. Dhabhar, «Maintenance of a Positive Outlook during Acute Stress Protects against Pro-inflammatory Reactivity and Future Depressive Symptoms,» Brain, Behavior, and Immunity 26, no. 2 (February 2012): 346-52, https://doi.Org/10.1016/j.bbi.2011.10.010.
3. Judith T. Moskowitz, Elizabeth L. Addington, and Elaine O. Cheung, «Positive Psychology and Health: Well-Being Interventions in the Context of Illness,» General Hospital Psychiatry 61 (November-December 2019): 136-38, https://doi.Org/10.1016/j.genhosppsych.2019.ll.001.
4. Eric L. Garland, Barbara Fredrickson, Ann M. Kring, David P. Johnson, Piper S. Meyer, and David L. Penn, «Upward Spirals of Positive Emotions Counter Downward Spirals of Negativity: Insights from the Broaden-and-Build Theory and Affective Neuroscience on the Treatment of Emotion Dysfunctions and Deficits in Psychopathology,» Clinical Psychology Review 30,no7(November2010): 849-64,https://doi.Org/10.1016/j.cpr.2010.03.002.
5. Judith T. Moskowitz, Elaine O. Cheung, Karin E. Snowberg, Alice Verstaen, Jennifer Merrilees, John M. Salsman, and Glenna A. Dowling, «Randomized Controlled Trial of a Facilitated Online Positive Emotion Regulation Intervention for Dementia Caregivers,» Health Psychology 38, no. 5 (May 2019): 391–402, https://doi.org/10.1037/hea0000680.
6. Barbara Fredrickson, «The Broaden-and-Build Theory of Positive Emotions,» Philosophical Transactions of the Royal Society B 359, no. 1449 (September 29, 2004): 1367-78, https://doi.org/10.1098/rstb.2004.1512.
7. Dusti R. Jones and Jennifer E. Graham-Engeland, «Positive Affect and Peripheral Inflammatory Markers among Adults: A Narrative Review,» Psychoneuroendocrinology 123 (January 2021): 104892, https://doi.org/10.1016 /j.psyneuen.2020.104892.
8. Sheldon Cohen, William J. Doyle, Ronald B. Turner, Cuneyt M. Alper, and David P. Skoner, «Emotional Style and Susceptibility to the Common Cold,» Psychosomatic Medicine 65, no. 4 (July-August 2003): 652-57, https://doi.org/10.1097/01.psy.0000077508.57784.da.
9. Yujing Zhang and Buxin Han, «Positive Affect and Mortality Risk in Older Adults: A Meta-analysis,» Psychology Journal 5, no. 2 (June 2016): 125-38, https://doi.org/10.1002/pchj.129.
10. Tsoknyi Rinpoche, Open Heart, Open Mind: Awakening the Power of Essence Love (New York: Harmony Books, 2012). This book describes in more detail the Handshake with Emotion and other practices that promote inner joy.
11. Anthony D. Ong, Lizbeth Benson, Alex J. Zautra, and Nilam Ram, «Emodiversity and Biomarkers of Inflammation, ’’Emotion 18, no. 1 (February 2018): 3-14, https://doi.org/10.1037/emo0000343; and E. J. Urban-Wojcik, J. A. Mumford, D. M. Almeida, M. E. Lachman, C. D. Ryff, R. J. Davidson, and S. M. Schaefer, «Emodiversity, Health, and Well-Being in the Midlife in the United States (MIDUS) Daily Diary Study,» Emotion (April 9, 2020): https://doi.org/10.1037/emo0000753.
12. Ines M. Tavares, Hera E. Schlagintweit, Pedro J. Nobre, and Natalie O. Rosen, «Sexual Well-Being and Perceived Stress in Couples Transitioning to Parenthood: A Dyadic Analysis,» International Journal of Clinical and Health Psychology 19, no. 3 (September 2019): 198–208, https://doi.org/10.1016/j.ijchp.2019.07.004.
13. Andrea Burri and Ana Carvalheira, «Masturbatory Behavior in a Population Sample of German Women,» Journal of Sexual Medicine 16, no. 7 (July 2019): 963-74, https://doi.Org/10.1016/j.jsxm.2019.04.015.
14. Esther Perel, «Why Eroticism Should Be Part of Your Self-Care Plan,» Esther Perel (blog), accessed May 17, 2022, https://www.estherperel.com/blog /eroticism-self-care-plan.
15. Robert H. Lustig, The Hacking of the American Mind: The Science Behind the Corporate Takeover of Our Bodies and Brains (New York: Avery, 2017).
16. June Gruber, Aleksandr Kogan, Jordi Quoidbach, and Iris B. Mauss, «Happiness Is Best Kept Stable: Positive Emotion Variability Is Associated with Poorer Psychological Health, Emotion 13, no. 1 (February 2013): 1–6, https:// doi.org/10.1037/a0030262.
17. Peter Koval, Barbara Ogrinz, Peter Kuppens, Omer Van den Bergh, Francis Tuerlinckx, and Stefan Sutterlin, «Affective Instability in Daily Life Is Predicted by Resting Heart Rate Variability,» PLoS One 8, no. 11 (November 29, 2013): e81536, https://doi.org/10.1371/journal.pone.0081536.