Chronicity: The state of being chronic, having a long duration.

When is something considered chronic?

Chronic diseases are defined broadly as conditions that last 1 year or more and require ongoing medical attention or limit activities of daily living or both. Chronic diseases such as heart disease, cancer, and diabetes are the leading causes of death and disability in the United States.

What is the best definition of chronic?

1a : continuing or occurring again and again for a long time chronic indigestion chronic experiments. b : suffering from a chronic disease the special needs of chronic patients.