FDA clears Natural Cycles birth control app for use with wearables

Since 2018, an app called Natural Cycles has allowed women to track their temperature and menstrual cycle as a way to know whether they're fertile. In that time, the process of using the app hasn't changed significantly. Every morning when you wake up, it asks that you take your temperature with a basal thermometer and log that data. And while Natural Cycles says it's okay for users to miss some days, the app is at its most effective as a contraception method when someone is methodical. With typ...