What is saline?
Simply put, saline is salt water. The water inside our bodies (like in our skin, eyes, and organs) has salt in it. You may have used saline drops to help moisten your eyes, or saline nasal spray to moisten your nasal passages. This is called “isotonic” saline, which is a fancy way of saying that it has the same level of salt as the water in your body. It feels refreshing. If you’ve ever gotten tap water (which has less salt in it than what is inside your body)
What is cystic fibrosis?
Cystic fibrosis (called “CF” for short) is a genetic condition. That means a person is born with it – it cannot be “caught,” like a cold or flu. There is a very broad range of how serious the health problems can be: some people have a severe form with lung and digestion problems, and some people have a very mild form, with few health problems.
People with CF can have very thick, sticky mucus in the lungs, which is difficult to cough out. This can