Possible sources for adding Asexuality as a topic  http://www.theguardian.com/lifeandstyle/2008/sep/08/relationships.healthandwellbeing http://www.asexuality.org/en/topic/98479-happiness-and-asexual/ https://www.psychologytoday.com/blog/living-single/200912/asexuals-who-are-they-and-why-are-they-important        