He's shared advice about health and medical visits, discussed the paperwork necessary for a sex change, described telling his parents about his transsexuality, and explained how one changes their identity officially, as well as offered many other tips and insights into this process.
Christopher nació biológicamente mujer pero su identidad de género es masculina, esto es, tiene disforia de género, razón por la cual decidió someterse a intervenciones médicas y quirúrgicas con objeto de lograr que su identidad sexual y de género coincidan.