XLH is often perceived as a child's disease, but this rare debilitating bone disease is a genetic disease that continues to progress with age. We'll meet a family that has been diagnosed with X-linked Hypophosphatemia and is now living with the reality of the disease. We'll also hear from Dr. Jan De Beur, an endocrinologist from Johns Hopkins Hospital in Baltimore, who will explain cause, diagnosis and resources available to find out more about XLH. It's part of the Mystery Behind the Rare Disease series on the Balancing Act.