"The 59-year-old woman, known only as Alice, had the worrying experience after she and her husband Scott had sex last August. She suddenly, albeit temporarily, lost all memory of the last several years and the ability to form new memories."
This is "transient global amnesia," which "can be triggered by strenuous activities, bowel movements, or – commonly – sex." Sounds awful. If you're going to get it, at least get the sex kind.