HEAR (Health Evidence Awareness report) is a newsletter designed to signpost 
Cystic fibrosis affects the internal organs, especially the lungs and digestive system. It causes them to become clogged with thick, sticky mucus. It is caused by a faulty gene that controls the movement of salt and water in and out of cells in the body. When cystic fibrosis occurs, too much salt and not enough water pass into the cells and turn the body’s secretions, which normally act as a lubricant, into a thick mucus. This mucus clogs up many of the body’s tubes, ducts and passageways so they cannot work properly. In the lungs, this leads to frequent and severe infections.