When does the spring cold usually occur? When does the late spring cold usually last?
Late spring cold is a common phenomenon before we enter spring. Many people are confused, when does the spring cold usually occur? Regarding, when does spring cold usually occur? When does the late spring cold usually last? Let me answer it for you one by one! When does late spring cold usually occur
The meteorological indicator of "late spring cold" is that the daily average temperature drops below 12°C and lasts for 3-5 days. It is usually in February to March when the temperature drops sharply. It is determined that "late spring cold" has occurred in this area. During the late spring cold period, the elderly and children with weak immunity are more affected. This kind of weather can easily lead to acute attacks of colds, asthma and bronchitis. Therefore, the elderly and children should pay attention to spring cover and add clothes in time to resist the cold.
How many months does late-spring cold usually last?
Late-spring cold means that the temperature rises quickly in early spring (generally late February and early March), and in late spring (generally April) the temperature is higher than in normal years. Low weather phenomena.
The health hazards of late spring cold
May cause cardiovascular and cerebrovascular diseases
The phenomenon of "late spring cold" may cause cardiovascular and cerebrovascular diseases in the elderly. The elderly have poor thermal balance ability, and their circulatory system is easily stimulated by the "late spring cold". After the temperature drops suddenly in spring, the sympathetic nerves of the elderly are stimulated by the cold and their excitement level increases. The capillaries on the surface of the skin all over the body shrink, which increases the resistance to blood flow and leads to an increase in blood pressure. Because the elderly and patients with cardiovascular and cerebrovascular diseases cannot adapt to this change, a sudden increase in blood pressure, cerebral infarction, cerebral hemorrhage or myocardial infarction may occur. In addition, sudden changes in weather can cause changes in the earth's magnetic field and induce autonomic nervous system disorders in the human body.
May induce rheumatoid arthritis
In early spring, some young ladies who love beauty wear skirts early. However, women’s knee joints are more sensitive to the stimulation of cold air. After being attacked by cold air, symptoms such as numbness and soreness are likely to occur in the local joints. Over time, rheumatoid arthritis is prone to occur. Survey reports have shown that Tunisian women like to wear skirts all year round, even in the bitterly cold winter. As a result, 70% of Tunisian women suffer from rheumatoid arthritis.
May cause respiratory infectious diseases
Due to the cold climate and dry air in early spring, the "late spring cold" sudden change in temperature will directly affect the defense function of the respiratory mucosa. Affected, pathogenic microorganisms such as bacteria and viruses can take advantage of the situation and cause the epidemic of infectious diseases such as influenza and mumps. During the alternation of winter and spring, the incidence of respiratory infectious diseases such as measles, diphtheria, whooping cough, scarlet fever, and tracheitis is much higher than in other seasons.