Bradycardia is a condition in which the heart beats at a slower rate than normal, that is, the heart rate (heart rate), or heart rate, is less than 60 beats per minute. Normally, in a healthy person, heart rate is from 60 to 100 beats per minute.
Bradycardia is not an independent disease, but a symptom that indicates abnormalities in the heart. It can be the result of heart diseases or pathologies of other organs and systems.
But bradycardia can also be physiological, that is, it is a variant of the norm. As a rule, physiological bradycardia is characteristic of athletes or people engaged in heavy physical labor. Continue reading
Atherosclerosis is a chronic disease in which arteries are affected and lipid and protein metabolism in blood vessels is disturbed. Atherosclerosis progresses over many years and causes cardiovascular diseases: hypertension, coronary heart disease, stroke, myocardial infarction – and peripheral vascular disease.
Causes of Atherosclerosis Continue reading
Cholesterol is a fat-like substance, without which the normal functioning of the human body is impossible. Cholesterol is a kind of building frame that ensures the stability of cell membranes. It is also part of bile, sex hormones and vitamin D3. Most of this substance (about 80%) is synthesized in the liver, a smaller (about 20%) comes with food.
In the blood, cholesterol is contained in the form of complex compounds – lipoproteins. There are “good” cholesterol – high density lipoproteins, in the form of which excess cholesterol is removed from the body, and “bad” cholesterol – low density lipoproteins, which are worse excreted from the body and partially settle on the walls of arteries, forming cholesterol plaques. Continue reading