There’s no right medium for tracking a menstrual cycle, Dr. Javaid says — it’s whatever fits into your teen’s life the best. “Some people like old fashioned paper, and they that’s how they keep track ...

Wearing a button in support of TikTok, Tiffany Cianci, who says she is a "long-form educational ... video app merged with its competitor Musical.ly, TikTok has grown from a niche teen app into ...