2 people worldwide have cystic fibrosis . Simple , right ? Disease causes mucus to clog the lungs , making it very difficult to breathe . CF was diagnosed with Gunnar Esiason when he was An estimated 70,000 . Now 2 , he says the disease has taught him to be resilient .
2 people worldwide have cystic fibrosis . Disease causes mucus to clog the lungs , making it very difficult to breathe . CF was diagnosed with Gunnar Esiason when he was An estimated 70,000 . Now 2 , he says the disease has taught him to be resilient .