High blood pressure, also known as hypertension, affects millions including children and teens.

Chronic kidney disease, also called chronic kidney failure, involves a gradual loss of kidney function.

The symptom experience of the CCI is likely to be quite different than that of cancer patients in an outpatient or community setting.

Diabetes mellitus refers to a group of diseases that affect how your body uses blood sugar (glucose).

Heart attacks and strokes are usually acute events and are mainly caused by a blockage that prevents blood from flowing to the heart or brain.

GERD, diarrhea and colorectal cancer are examples of gastrointestinal diseases. When examined, some diseases show nothing wrong with the GI tract, but there are still symptoms.

The nervous system is a complex, sophisticated system that regulates and coordinates body exertion.

Hematologic disorders involve the blood and include problems with red blood cells, white blood cells, platelets, bone marrow, lymph nodes, and spleen.

Respiratory disorders, or lung diseases, are disorders such as asthma, cystic fibrosis, emphysema, lung cancer, mesothelioma, pulmonary hypertension, and tuberculosis.