When the heart stuffy
Healthy heart we do not normally perceive. It often beats only in moments of strong emotions – fear, or joy, love or hate. It is hollow and just given in your ears at high load – long run, climbing a steep mountain, at the time of a parachute jump.
And if it suddenly for no apparent reason, began to beat, “fainted”, “failed somewhere,” if there was an acute chest pain radiating to the shoulder blade, neck, teeth, doctor, whom you describe your feelings, immediately suspected coronary artery disease heart disease (CHD). This means that your heart is not enough oxygen, it suffocates.
What is coronary artery disease
Ischemia – a lack of blood the heart muscle (myocardium), which acts as a pump. To the heart to work, myocardial oxygen need and supply, which brings him the blood through the coronary vessels. From the heart blood should take the “products of combustion.” If the gap is narrowed coronary spasm or sclerotic deposits, lack of oxygen, and the “waste” in abundance – the myocardium begins to suffocate, to weaken. He shakes his bad blood, there is chronic heart failure.
The first form of coronary artery disease – angina, in which the lumen of coronary vessels narrowed, but not completely. The main symptom – pain in the chest, radiating into his left hand under the shoulder blade, left side of the mandible, even teeth. Angina is stable or unstable, stress and even at rest.
The second form of ischemic heart disease – myocardial infarction. When one (or more) completely clogged coronary arteries, some of the muscles no longer receive food and oxygen and actually dies. Then a man’s life depends on the size of the dead and the speed with which it will help doctors. In Russia, a myocardial infarction is the major cause of premature death. From coronary heart disease each year kills more than 600,000 Russians – a big city.
10 risk factors
Gender (men get sick more often women)
Age (the older the risk is higher)
Disturbances of lipid metabolism, cholesterol
High blood pressure
Violation of carbohydrate metabolism, diabetes
Lack of exercise (physical inactivity)
Psycho-emotional strain and stress
How does the heart
Heart – four-muscle pump, on average, weighs 300 grams. For one thing, it pushes the reduction in vessels of 60-75 ml of blood. During the day, the heart contracts about 100,000 times, pumping 6,000 to 7,500 liters of blood, or 30-37 full cast-iron baths with a capacity of 200 liters.
Blood moves into the heart of eight: from the veins to flow into the right atrium, right ventricle and then pushes it into the lungs, where it is oxygenated and returned to the left atrium. Then from the left ventricle through the arteries carry blood to all organs of the body. Nutrition and respiration of the heart provides the coronary (coronary) vessels.
Run, rabbit, run
Everyone knows that lying on the couch is more harmful than walking and exercising. Why? To understand this, scientists of the Institute of Clinical Cardiology. Put rabbits in the cage (about the size of the body) and held without movement 70 days. Then look at their heart under an electron microscope. We saw a terrible picture. Many myofibrils – the fibers that make the muscle contracts, – have atrophied. Disrupted communication between the cells that help them work together seamlessly. The changes affected the nerves that control muscles. The walls of the capillaries that carry blood to them, began to grow inward, reducing the lumen of blood vessels. Here you have a sofa!