I just watched a special on asexuality on 20/20(http://www.youtube.com/watch?v=CeKGOMUVU7g&feature=related), and some people , including many so called professionals on human behavior and human intimacy, believe that their is no gene for asexuality and have a difficult time believing that a person can live a happy , productive life abstaining from sex throughout their life. From what I saw, the sex therapist in this video seems argue that the asexuals are asexuals because their are intangible barriers in place that subconsciously prevent them from having sex. Do you believe that these group of asexuals are an exception and that sex is a requirement to reach happiness for most humans ? I thought the sex therapist in the video was being a hypocrite and showing a little bit of narrowmindedness for she used the analogy of a colorblind person not having the enjoyable experience of seeing colors when she herself really has not had the same experiences that the asexual people have had so she does not have the authority to say if their lives would be more enjoyable with sex. What do you think?