15 Celebs Who Are Struggling with Severe illnesses

10. Nick Jonas – Type 1 Diabetes

Nick Jonas was 13 and on tour with his brothers when he realized something was seriously wrong. He was constantly thirsty and had dropped 15 pounds in two weeks. He was taken to the hospital, where he was diagnosed with type 1 diabetes. He has learned to manage his disease by working closely with doctors and learning how his body works. He has also become an advocate to find a cure.