According to the World Health Organization, reproductive health means total well-being in all aspects of reproduction including physical, emotional, behavioral, and social well-being. The document discusses various reproductive health topics like sexually transmitted diseases, infertility, assisted reproductive technologies, and in vitro fertilization. It provides details on IVF, GIFT, ZIFT, IUI, and ICSI procedures which involve extracting eggs from a woman, combining them with sperm, and reimplanting embryos to help infertile couples conceive. The document also notes that ART sometimes uses donor eggs, donor sperm, or previously frozen embryos.