I came here to study <a href=" http://thesisawesome.com/skins/#certainty ">buy tretinoin gel</a> But reproduction is, of course, not the same thing as sexual health. Reproduction explains the mechanics of procreative sex. Sexual health is a much broader concept: it includes contraception, pregnancy and abortion; the prevention, testing and treatment of sexually transmitted infections; fertility and infertility. Learning about the body, reproduction and sexual health in science also helps safeguard children and young people by giving them the language and understanding to recognise sexual abuse.