Written by Threatening cardiovascular and cerebrovascular disease is a major killer of mankind, in general, winter is the coronary heart disease and cerebrovascular disease in the high season, but the clinical findings, the summer is the peak season of coronary heart disease.
First, summer weather is hot, the air humidity increases, vasodilation, limb vascular blood flow, change thy blood less, leading to myocardial ischemia.
Second, the short summer day and night, the elderly well done and fit, and easy irritability, restless in bed was removed, resulting in lack of sleep.
Third, the summer light a long time, so that a long time in human hypothalamus during the day lay-off status of the pineal gland, resulting in a sleep messenger known as melatonin (MT) secretion decreased, causing the clock rhythm changes have insomnia , and MT in addition to control biological clock starts sleep, but also can eliminate free radicals, cardiovascular maintenance. Summer due to decreased secretion of NT, free radicals can not be promptly removed, can lead to coronary heart disease.
Fourth, in the summer high temperatures, lack of sleep can cause the heart rate, sympathetic tone, vasoconstriction, blood pressure, and feelings of irritability, H1 sweat more, causing great loss of body fluids, the results of blood viscosity, leading to cardiovascular and cerebrovascular congestion, coronary insufficiency , high summer temperatures, humidity, air containing oxygen is low, but also easy to cause myocardial ischemia , which lead to heart disease.
In summary, the prevention of coronary heart disease in summer can not relax sudden, and maintain good sleep is the basis for prevention of cardiovascular diseases. Solving sleep problems in summer to do the following:
(1) First, there is a comfortable environment, quality of sleep for the provision of summer is a very important premise.
(2) exercise to be cool in the morning when elected, should not exercise in the hot sun, reduce outdoor activities.
(3) adjust the diet, eat more fruits and vegetables light, Eat less meat Atsumi high.
(4) adjust the indoor temperature and humidity, usually 20 to 30 degrees is appropriate, relative humidity of 60% is best.
