You’ve heard of the four stages of the menstrual cycle—menstrual, follicular, ovulation, luteal—but, truth be told, it’s been years since you took a sex-ed class and you could use a refresher course.

Please provide your email address to receive an email when new articles are posted on . Women who received COVID-19 vaccination in the follicular phase had longer menstrual cycles vs. before ...

Editor's Note: We at PS recognize that people of many genders and identities have menstrual cycles. This particular story includes language from experts who generally refer to people with menstrual ...

The study finds no rise in injuries during menstruation in elite football, yet highlights increased severity, urging better ...