Not so, says Stella Immanuel, a Houston pediatrician and spiritual leader of Fire Power Ministries, a pronouncedly non-orthodox church. Endometriosis and other potentially dangerous gynecological conditions are the residue of sexual intercourse with demons, Immanuel teaches. These demons, known as “spirit husbands” and “spirit wives” (you might prefer their pet names: Incubus and Succubus) once walked the Earth in physical form. After they drowned in Noah’s flood, however, they carried on only in non-corporeal form. They visit humans in sexy dreams, which aren’t dreams after all but spirit spouses making a booty call. The demons are responsible not only for diseases of the female reproductive system but also for male impotence, most financial troubles, marital discord and spiritual malaise.

This is not Immanuel’s only diversion from the medical mainstream. She also maintains that alien DNA is a component of some therapeutic drugs and that government scientists are developing a vaccine to prevent religious faith. You can find these and other teachings of hers on YouTube.