What is cystic fibrosis? do a research.

CF is an inherited life-threatening disorder that damages the lungs and digestive system.

Cystic fibrosis affects the cells that produce mucus, sweat, and digestive juices. It causes these fluids to become thick and sticky. They then plug up tubes, ducts, and passageways.

Symptoms vary and can include cough, repeated lung infections, inability to gain weight, and fatty stools.

Treatments may ease symptoms and reduce complications. Newborn screening helps with early diagnosis.

Explanation:

this is not an education question

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.