Research reveals lingering postcoital cycle in women
In 2011, UK researchers released an interesting survey of postcoital symptoms in women. It didn't fit the standard script about how sex and orgasms transform women into glowing, satisfied beings or eager, contented lovers. Researchers noted,
Despite a wealth of evidence from specific internet sites and forums suggesting that irritability, crying and mood swings after sex seem to be common in females and males, to date no scientific study has tried to explore the nature of the phenomenon. ... Reports from female sufferers describing their condition suggest that [postcoital symptoms] can occur after sexual intercourse, both with and without orgasm.