As many as 50 million people now have a record of their menstrual cycle on their personal devices. But how much should we rely on our period tracker for reliable and accurate information about ...

Cycle Tracker, an app that helps women keep track of their menstrual cycles, is available now on the Apple Watch. While limited cycle tracking has been part of Apple’s iOS Health app since 2015, Cycle ...

Understanding how stress can affect your period may help you rule out potential causes of menstrual cycle irregularity. Stress is often spoken about negatively, but it isn’t inherently bad for you. It ...