Chronic diseases can be defined as those that persist for a long period of time, in most cases causing the sufferer health issues for longer than a period of 3 months. Chronic diseases in most cases cannot be prevented by vaccines or cured by medication, nor do they just disappear.
Some of the most common chronic diseases include Asthma, Coronary Artery Disease, Cancer, Cystic Fibrosis, Multiple Sclerosis, Diabetes, Heart Disease, Obesity and Osteoporosis to name but a few.
