Menstruation Explained: Period Symptoms, Ovulation and PMS: By Shreoshree Chakrabarty Have you ever been curious about what really happens during menstruation when girls reach puberty and begin their ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Girls in the United States are getting their periods earlier, and it's taking longer for them to become regular, ...

No matter what brings a woman to the doctor’s office, she can expect one question without fail: “When was the first day of your last menstrual period?” Dr. Alla Vash-Margita, chief of pediatric and ...