The definition of a chronic illness is a condition the last for one or more years that requires ongoing medical attention, limits daily activities, or both according to the CDC. For example, a list of chronic illnesses include diseases such as cancer, chronic obstructive pulmonary disorder (COPD), diabetes, heart disease and stroke. In addition, there are also some well-known common chronic neurological illnesses such as Alzheimer’s disease, ALS (Lou Gehrig’s disease), dystonia, epilepsy, Huntington’s disease, multiple sclerosis, neuromuscular disease, and Parkinson’s disease. There are also many rare diseases that are chronic as well. Now, let’s look deeper at the numbers.