The term disease ( Dis ease) derived it’s meaning from a distortion or a disruption of ease within the human body. To simplify it would mean a blockage within the human body. Just as God has designed nature to be in harmony with itself meaning that everything is orderly, arranged and dependent on everything else to sustain itself so has he created our bodies in like manner to be in harmony and everything dependent on everything else. If one organ, gland or nerve is blocked then it disrupts the harmony of the human body and we have a state we refer to as disease.
Now when we refer to Heart Disease again we are talking about a blockage. A blocked artery, but also in Heart Disease when it comes to atherosclerosis according to Wikipedia it means a condition in which an artery wall thickens as the result of a build-up of fatty materials such as cholesterol. It is a syndrome affecting arterial blood vessels, a chronic inflammatory response in the walls of arteries, in large part due to the accumulation of macrophage white blood cells and promoted by low-density lipoproteins (plasma proteins that carry cholesterol and triglycerides) without adequate removal of fats and cholesterol from the macrophages by functional high density lipoproteins (HDL), (see apoA-1 Milano). It is commonly referred to as a hardening or furring of the arteries. It is caused by the formation of multiple plaques within the arteries. For more on Heart Disease check out the following article http://freedomfrominfirmities.com/natural-health-tips/heart-disease-cardio-myopathyDefinition Diseases harmony human body what is heart disease