tomorrow is December 7, 2017. The annual heavy snow solar term is coming. After that, the minimum temperature in most parts of China will drop to 0 ℃ or below. In increasingly cold weather, it is necessary to carefully prevent some common winter diseases, such as stroke, heart disease and digestive tract ulcer. Then let the old yellow calendar bring you the advice of health experts.

stroke prevention for people with poor vascular elasticity, rapid changes in temperature will bring blood pressure fluctuations and lead to stroke. Cold can excite people's sympathetic nerves, increase catecholamines in the blood, and lead to systemic vasoconstriction. At the same time, when the temperature is low, the perspiration of the human body decreases and the blood volume increases relatively. These reasons can increase the blood pressure and promote cerebral hemorrhage.

are two high incidence periods of acute myocardial infarction in winter and late winter and early spring. In addition, the diseased coronary artery is particularly sensitive to cold stimulation, contract when cold, and even block the blood vessels, resulting in myocardial ischemia and hypoxia, induce angina pectoris, and myocardial infarction in severe cases.

therefore, the elderly should pay attention to cold prevention and warmth preservation, add clothes and bedding at any time according to the weather changes to prevent cold invasion, regularly carry out physical examination of cardiovascular system, and select thrombolytic, lipid-lowering, vasodilator, myocardial ischemia and hypoxia prevention drugs under the guidance of doctors.

prevent peptic ulcer. At this time, due to the cold stimulation, the excitability of human nervous system increases, and the autonomic nerve dominating the internal organs is in a tense state. Under the reflex of parasympathetic nerve, the function of gastrointestinal withered nodes is disordered, the secretion of gastric acid is increased, which stimulates the gastric mucosa or ulcer surface, resulting in spasmodic contraction of the stomach, resulting in ischemia and hypoxia of the stomach itself, Thus causing stomach disease recurrence. Therefore, we should pay attention to the warmth preservation of the stomach and diet.