Fei Luo Yang Shen, chairman of the Group of 51-year-old prime sudden cardiac death is regrettable. Prior to its more famous performers as well as hou, high Xiumin also died of sudden cardiac death. Recalling these people, and almost all pressure. The effects of stress on human health, belongs to the category of stress in the pathophysiology. Stress concept: when the body from internal and external environmental factors and by social and psychological factors to stimulate the emergence of systemic non-specific adaptation reactions. Stimulation of the stress response is called stressor, stressor varied, psychological stress just one of them.
Stress in accordance with the role of time can be divided into acute stress and chronic stress, under normal circumstances, acute stress reaction is to protect the body from injury. Experience counts as a series of reactions of acute stress when Fang attack. Acute stress on detailed procedures, combined with their own experience of Fang had written a more detailed article, I will not repeat. But with different acute stress, chronic stress brought about by the reaction of the most harmful. Two body reaction system under stress activated: locus coeruleus - sympathetic - adrenal system, the hypothalamus - pituitary - adrenal axis system, acute stress can help to quickly mobilize a lot of energy, so that heart and lung revved. But a long time, it will cause peripheral vasoconstriction, blood increases in blood fatty acid concentrations, elevated blood insulin secretion, blood glucose increased. The three high can cause atherosclerosis, vascular endothelial injury of the blood vessels to the heart is coronary heart disease.
A normal heart when it receives a strong stimulus is generally not Xiecai, normal heart function because there is a considerable reserve. For example, let coronary artery supplying the heart widened diameter, to the heart muscle to deliver more energy. Cardiomyocytes greater range of activities, not only to increase the contraction amplitude, diastolic amplitude increases, which can carry more blood to the body. Heart beat faster, and so on. These three aspects of the compensation must be coordinated, on the one hand the lack of any compensatory completely ineffective, even catastrophic. The chronic stress suffered a torn heart, coronary arteries have severe stenosis, just enough blood flow and oxygen supply to the resting state, the sudden increase in the intensity of instruction time to extend the work of the heart is not the ability to think, to accept only know instruction, a group of blind accelerate the contraction of myocardial cells increase, like a bunch of high morale nor the logistical soldiers, after an assault on the pines.
Myocardial ischemia in 20-30 minutes after the start of necrosis in batches, if the blood supply is not restored, and eventually all necrosis. If a larger infarct size, can produce heart failure and died, the patient will be chest pain, difficulty breathing, may be pink frothy sputum, until breathing and heartbeat stopped. If it is larger avascular necrosis, or just to spread information transmission system between the various parts of the heart work together, sudden death.
(Answer finishing from healthy Chinese Network)
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