Answer:
A genetic disorder, in which the lungs and the digestive system get clogged with mucus.
Cystic fibrosis is caused by a change (mutation) in the gene
or inherited
Explanation:
Try meditation every night before bed. Breath in through your nose count to 4 and breath out through your mouth and count to 4,do this 5-10 times when ever you feel really stressed and before bed. I do this every night and it helps me hope it works for Heidi and her sister
Every ten years, I believe.