Sarah Dingle was 27 when she found out that her dad was not her biological father. She wasn't adopted, but donor-conceived. While donated eggs, sperm and embryos have meant that more people are able to realise their dream of a family, for Sarah it has meant confusion, grief, frustration and anger. Along the way she has discovered an incredible lack of protection for the children conceived through donation. Her book Brave New Humans, the Dirty Reality of Donor Conceptionis an exploration of what it means to live in a world where science has created a dream for some of us, and a nightmare for others.