The New York Heart Association Functional Classification distinguishes four categories of heart failure according to how much the patients are limited in their physical activity.
Category I: No limitation of physical activity. No undue fatigue, palpitation, or shortness of breath.
Category II: Slight limitation of physical activity. Comfortable at rest. Fatigue, palpitation, or shortness of breath at ordinary physical activity.
Category III: Marked limitation of physical activity. Comfortable at rest. Fatigue, palpitation, or shortness of breath at less than ordinary physical activity.
Category IV: Discomfort with any physical activity however slight. Symptoms of heart failure at rest. Increased discomfort whenever any physical activity is undertaken.
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My name is Richard Morrill, and I am the editor of this web-site and also of the website seleniumfacts.com.
I have earned a B.A. from the University of Maryland, an M.S. from the University of Southern California, an M.L.S. from Indiana University, and an Ed.D. from the University of Massachusetts in Amherst. I am, by profession, a research librarian.
I worked for many years in the Reference Department of the Main Library at the University of Massachusetts, and, for the past many years, I have worked in a branch library of the Lake-Sumter State College in Florida.
My interest in Coenzyme Q10 is longstanding. Coenzyme Q10 molecules are fat-soluble molecules that are both synthesized in the body and ingested in the diet and in supplements. Coenzyme Q10 is synthesized in the body in the same biological pathway as cholesterol. However, bio-synthesis of Coenzyme Q10 begins to decline once humans reach their adult years. The reduced production of Coenzyme Q10 cannot be compensated for in the diet in any practical way. CoQ10 supplementation is a necessity.
Links to other sites where I have been writing articles:
Seleniumfacts.com.