31. Peter Glick and Susan T. Fiske, “Hostile and Benevolent Sexism: Measuring Ambivalent Sexist Attitudes Towards Women,” Psychology of Women Quarterly 21, no. 1 (March 1, 1997): 119–35.

1. Raewyn Connell, Gender in World Perspective (Cambridge, UK: Polity, 2009), 60.

2. Janet S. Hyde, “The Gender Similarities Hypothesis,” American Psychologist 60, no. 6 (September 2005): 581–92.

3. Raewyn Connell, Gender and Power: Society, the Person and Sexual Politics (Cambridge, UK: Polity, 1987), 170.

4. Connell, Gender in World Perspective, 56–57.

5. Will Courtenay, “Theorizing Masculinity and Men’s Health,” in Men’s Health: Body, Identity, and Social Context, ed. Alex Broom and Philip Tovey (Chichester, UK: Wiley-Blackwell, 2009), 15.

6. EHS Today staff, “NHTSA Targets Young Males in Seat Belt Safety Campaign,” EHS Today, May 21, 2018, www.ehstoday.com/safety/nhtsa-targets-young-males-seat-belt-safety-campaign.

7. Laura J. Viens et al., “Human Papillomavirus-Associated Cancers — United States, 2008–2012,” Morbidity and Mortality Weekly Report (MMWR) 65, no. 26 (July 8, 2016): 661–66.

8. Jacinta Bowler, “The HPV Vaccine Has Cut Infections By up to 90 % in the Past 10 Years,” Science Alert, last modified August 29, 2016, www.sciencealert.com/the-hpv-vaccine-has-halved-cervical-cancer-rates-in-the-past-10-years.

9. Lilly Berkley, “Young Guys May Think Preventing HPV Is ‘Women’s Work,’” Futurity, last modified December 2, 2016, www.futurity.org/hpv-vaccine-men-1308052-2.

10. E. U. Patel et al., “Increases in Human Papillomavirus Vaccination Among Adolescent and Young Adult Males in the United States, 2011–2016,” Journal of Infectious Diseases 218, no. 1 (June 5, 2018): 109–13.

11. David L. Bell, David J. Breeland, and Mary A. Ott, “Adolescent and Young Male Health: A Review,” Pediatrics 132, no. 3 (September 2013): 537.

12. Sabrina Tavernise, “Young Adolescents as Likely to Die from Suicide as from Traffic Accidents,” New York Times online, November 3, 2016, www.nytimes.com/2016/11/04/health/suicide-adolescents-traffic-deaths.html?_r=0.

13. Pam Harrison, “Pediatric ADHD Accounts for 6 Million Physician Visits Annually,” Medscape, last modified March 28, 2017. www.medscape.com/viewarticle/877849; Sroufe, “Ritalin Gone Wrong.”

14. Gary Barker, What About Boys? A Literature Review on the Health and Development of Adolescent Boys (Geneva, Switzerland: World Health Organization, 2000).

15. Michael Kimmel, Manhood in America (New York: Free Press, 1996), 120.

16. David Whitson, “Sport in the Social Construction of Masculinity,” in Sport, Men and the Gender Order, eds. Michael A. Messner and Donald F. Sabo (Champaign, IL: Humans Kinetics Books, 1990), 23.

17. Don Sabo, “Sports Injury, the Pain Principle, and the Promise of Reform,” Journal of Intercollegiate Sport 2, no. 1 (June 2009): 145–52.

18. Maya Dusenbery and Jaeah Lee, “Charts: The State of Women’s Athletics, 40 Years After Title IX,” Mother Jones online, last modified June 22, 2012, www.motherjones.com/politics/2012/06/charts-womens-athletics-title-nine-ncaa.

19. Joanna L. Grossman and Deborah L. Brake, “The Big 4–0: Title IX Puts a Fourth Decade Under Its Belt,” Verdict (blog), Justia, June 26, 2012, https://verdict.justia.com/2012/06/26/the-big-4–0.