Facebook Might Know When You Last Had Sex
by Beth Skwarecki on Vitals, shared by Beth Skwarecki from Lifehacker on (#4PZ4C)

Some period tracking apps have been sending data to Facebook, BuzzFeed reports, including when you had sex, if you logged that using the apps. They also share other information you've logged, from detailed medical data to your mood to the fact that you're using a menstruation app.