Teen Mom 2's Leah Messer Gives Update on Daughter's Battle with Muscular Dystrophy

Leah Messer is opening up about her daughter's battle with muscular dystrophy. On Thursday, the "Teen Mom 2" star took to Instagram to give a positive update on her 12-year-old daughter Ali's health, which Leah, 29, has been spoken about on the MTV reality series. In her post, Leah shared a compilation video that featured photos and videos of Ali -- who was diagnosed with a rare form of muscular dystrophy when she was only four years old -- including shots of Ali horseback riding, an image of Al...