Harm of indoor heat to human body

Too hot in the room is harmful to human health. Home is where we often rest. Only by getting enough rest can we cope with study or work with full energy during the day. Once the room is too cold or too hot, our bodies will feel uncomfortable. Let's take a look at the harm of being too hot in the house to the human body.

Harm of indoor heat to human body 1 The main influence of high temperature and sultry heat on human health is heatstroke and death caused by cardiovascular and cerebrovascular diseases.

Under the action of excessive ambient temperature, the thermoregulation mechanism temporarily fails, leading to heat accumulation in the body and heatstroke.

According to the symptoms and degree of heatstroke, it can be divided into:

Heat collapse is the mildest and most common manifestation of heatstroke;

Thermal radiation refers to long-term work in a high temperature environment, which leads to vasodilation and congestion of the lower limbs, leading to fainting;

Heatstroke is caused by long-term exposure, which leads to perspiration dysfunction.

For patients with hypertension, cardiovascular and cerebrovascular diseases, in the environment of high temperature, humidity, no wind and low pressure, perspiration is inhibited, the stored heat in the body is increasing, and the myocardial oxygen consumption is increasing, which makes the cardiovascular system in a state of tension. The sweltering heat can also lead to vasodilation and increased blood viscosity, which is prone to symptoms such as cerebral hemorrhage, cerebral infarction and myocardial infarction, and may lead to death in severe cases.

According to the investigation of cardiovascular and cerebrovascular diseases in Beijing, it is found that hot and humid weather is a dangerous weather that leads to ischemic stroke.

It's sultry in summer, and it's also prone to colds (Xia Han), diarrhea, skin allergies and other diseases. The reason is that in the high temperature environment, human metabolism is vigorous, energy consumption is large, and sultry heat often makes people lack sleep and lose appetite, which leads to the decline of human immunity. At this time, if you don't control the use of air conditioners or electric fans to relieve summer heat, the human body will be in a low temperature environment for a long time, and its adaptability and resistance will decrease, and germs and viruses will take advantage of it and easily cause upper respiratory tract infections (colds).

In addition, in the high temperature and high humidity environment, bacteria, viruses and other microorganisms multiply in large quantities, and food is easy to deteriorate, which will cause indigestion, acute gastroenteritis, dysentery, diarrhea and other diseases after eating; When people come home from the outdoor high temperature environment, they are used to turning on the air conditioner or directly blowing it with an electric fan and eating some iced food. This cold and heat will take effect immediately, and diarrhea will begin immediately. The sultry weather makes people sweat poorly, and it is also easy to cause skin allergies, mainly papular urticaria, eczema, contact dermatitis and so on.

Harm of indoor heat to human body II. Too hot in the room is harmful to human health. In the cold winter, overheating at home will not only cause colds, but also bring other diseases. In winter, the air is dry, and indoor heating evaporates the scarce water in the air. People are prone to "fever", that is, due to lack of water in the body, symptoms such as colds, coughs, chapped lips and oral ulcers often occur, endangering the functions of the respiratory system, cardiovascular system and urinary system. This is also a common endemic disease in northern China.

For the elderly and patients with a history of cardiovascular diseases, the indoor temperature is too high and the water evaporates too fast, which can lead to the increase of blood viscosity and cause cardiovascular diseases such as blood pressure fluctuation and angina pectoris. Excessive temperature difference between indoor and outdoor can also cause coronary heart disease. Seasonal indoor temperature is generally between 18℃ and 22℃, and human body feels most comfortable. In addition, don't just pursue the temperature, but also coordinate the humidity. For example, 18℃ to 25℃, and the humidity at home should be between 30% and 80%.

What effect does damp heat in the house have on the body?

According to disease analysis, damp-heat can cause loss of appetite and digestive function, poor spirit and decreased human resistance. The reason of damp heat is that the room is not ventilated for a long time, and harmful gases such as carbon dioxide, dust, dander and smoke in the air increase, which is not easy to be discharged. So let the human body feel sultry, irritable and depressed. So the living environment should be suitable for temperature and humidity.

Does room temperature affect body temperature?

Indoor overheating will affect the body temperature. If the indoor temperature is too high, the heat dissipation function of the human body will be affected to some extent, and the heat dissipation of the body will decrease, but some body temperatures will increase. At this time, it is necessary to keep indoor ventilation, and it is more appropriate to keep the room temperature above 20 degrees, which has little effect on body temperature.

Under normal circumstances, if the outside temperature is normal, if the body temperature is measured under the armpit, the normal body temperature is between 36 and 37 degrees, and a fever is considered if it exceeds 37 degrees. If the body temperature is measured in the mouth, it is between 36 to 3 degrees and 37 to 2 degrees, and it can be regarded as a fever if it exceeds 37 to 2 degrees.

If the temperature is measured in the anus, the temperature is between 36 to 5 degrees and 37 to 7 degrees, and it is considered as a fever if it exceeds 37 to 7 degrees.

Harm of indoor heat to human body 3. High temperature directly leads to disease.

Under the condition of high temperature, diseases directly caused by high temperature include heatstroke and mental and neurological disorders.

Heatstroke is an acute heatstroke disease characterized by the disorder of central nervous system and cardiovascular system caused by heat balance and water and salt metabolism in high temperature environment.

Mental nerve disorder, also known as thermal fatigue, refers to the adverse effects of high temperature environment on mood, work ability and technical efficiency.

High temperature-induced diseases

In the high temperature environment, because the human body is in a state of thermal stress, sympathetic nerves are excited, sweating a lot, blood viscosity increases, the cardiovascular system is in a state of high load operation, and the function of the digestive system is weakened, thus causing the aggravation of the original diseases, such as sudden changes in blood pressure in the early and late heating, which can induce heart disease, congestion, coronary heart disease and so on. The increase of blood viscosity can cause thrombosis, which can lead to stroke; The weakness of digestive system leads to poor nutritional status of human body, which further aggravates the original organic diseases.

Common high temperature diseases

heat and cold

In summer, when the temperature is high, human metabolism is vigorous and energy consumption is high. However, heat often makes people lack sleep, lose appetite, and human immunity and resistance begin to decline. In addition, if they are too greedy for cold, such as blowing fans or air conditioners directly, germs and viruses will take advantage of it, thus causing colds and colds.

suffer sunstroke

In the hot summer, the human body sweats more, while the old people have less water than the young people, and their physiological reaction is slower, so they are easy to dehydrate in summer, which will lead to thick blood. This is undoubtedly "adding fuel to the fire" for the old people suffering from hypertension, hyperlipidemia or cardiovascular and cerebrovascular diseases, and the blood transfusion in the brain is blocked and slowed down, and the probability of intermediate points increases.

diarrhea

Diarrhea has much to do with improper diet. High temperature and humidity in summer will promote the reproduction and growth of bacteria, and food will rot easily. If you don't pay attention to your diet, diarrhea will occur, especially for children or infants.

psychosis

Due to the influence of high temperature, about 16% people will have emotional and behavioral abnormalities, especially middle-aged and elderly people. This condition is called "summer affective disorder". The occurrence of this situation is closely related to temperature, sweating, sleep time and insufficient diet. When the ambient temperature exceeds 30℃, the sunshine time exceeds 12 hours, and it is moderately higher than 80%, the influence of meteorological factors on the emotional regulation center of human hypothalamus is obviously enhanced, and the occurrence of emotional disorders is obviously increased. In addition, excessive sweating and electrolyte metabolism disorder affect brain nerve activity, leading to abnormal mood and behavior.

High temperature death

High temperature has many effects on human health, some directly lead to diseases, some indirectly affect the original diseases, or affect people's emotions and nervous system, and the most serious consequence is death.

As a meteorological factor, high temperature itself can directly lead to severe heatstroke death, and can also be used as an inducing factor to aggravate the illness of some patients with serious organic diseases and die; In addition, high temperature will weaken people's nervous function, leading to accidents and deaths, and even people's behavioral adaptation activities at high temperature will lead to behavioral changes and dangerous behavioral factors that lead to death.