Why are heart problems so common in summer?

Experts point out that there are several main reasons why summer is a period of high incidence of heart disease:

First, the high temperature in summer will make the heart beat faster. . Under normal circumstances, healthy people's heartbeats are about 75 times per minute. If they are in a high temperature environment, the heartbeat can accelerate, even exceeding 100 times per minute. A healthy heart can compensate for this huge burden in the short term, but an unhealthy heart will have difficulty coping and may cause heart failure.

Second, high temperature will cause the body to sweat a lot. People sweating profusely in high-temperature environments can cause electrolyte disorders, which can cause drastic changes in the strength and speed of the heartbeat. Coupled with autonomic nerve disorders, the heart may lose control like a runaway wild horse.

Third, in hot and muggy weather, patients tend to be irritable, and autonomic nerve disorders can easily cause arrhythmia.

Fourth, the weather is hot and dry in summer nights, and the days are long and the nights are short, which greatly reduces the quality of sleep. Cardiovascular and cerebrovascular patients who lack rest are prone to disease.

Patients with the following heart diseases must be particularly careful

Coronary heart disease: Due to high blood lipids, smoking, obesity and other reasons, atherosclerosis of the coronary arteries can occur. Atherosclerotic plaque accumulates on the intima of the coronary arteries, which over time can severely narrow or even block the coronary arteries, resulting in a significant reduction in blood and oxygen required by the myocardium. Sultry weather can aggravate myocardial ischemia and hypoxia in patients with coronary artery sclerosis, causing damage or necrosis of some myocardial cells.

Rheumatic heart disease: rheumatic heart disease. In the chronic stage, aortic valve, mitral valve, tricuspid valve, valve stenosis and/or insufficiency are mainly formed. Most of the patients were female, and half of the patients had no history of rheumatic fever, but most had a history of recurrent streptococcal tonsillitis or pharyngitis. A hot and humid environment will also aggravate the condition.

Cor pulmonale: Pulmonary heart disease. It is a heart disease caused by increased pulmonary circulation resistance caused by diseases of the lungs, pulmonary blood vessels or chest cavity. Sultry weather can cause difficulty breathing, heart discomfort, and aggravate the condition.

Hypertensive heart disease: The high temperature and sultry weather in summer cause a long-term increase in arterial blood pressure, which will overload the ventricular pressure and reduce the ventricular relaxation function, thus leading to hypertensive heart disease.

Other high-risk groups with high blood lipids, high blood pressure, high blood sugar, and high blood viscosity: High blood pressure can cause a variety of complications, and it is one of the main causative factors of coronary heart disease for the heart. After long-term high blood pressure, the load on the left ventricle increases. Long-term overload work will lead to myocardial hypertrophy and enlargement, and heart failure may occur as the disease progresses. At the same time, persistent hypertension is conducive to the deposition of lipids in the intima of large and medium-sized arteries, thereby accelerating the formation of atherosclerosis and leading to the occurrence of coronary heart disease. In addition, people with high blood lipids, high blood sugar, and high blood viscosity are very likely to form blood clots in summer, so they must take special precautions.