It's cold in winter. Whether it's heating or air conditioning, choosing the right temperature can make people feel comfortable without damaging their health and delaying their work and study. So how many degrees is the most appropriate temperature for heating or air conditioning in winter? The editor of this article will talk to you about the appropriate adjustment of indoor heating.
The heating temperature in winter should not be too high: when the indoor temperature is above 22 ℃, the air will be abnormally dry. The dry and hot environment will hurt people's body fluid and body gas, making people feel dry and hot all over the body, and dry and uncomfortable in eyes, ears, mouth, nose, throat and skin. If the indoor temperature is too high for a long time, it will affect people's body temperature regulation function, resulting in increased body temperature, vasodilation, accelerated pulse and heart rate, and people will be tired, dizzy, dull thinking and poor memory. If the indoor temperature is too high, the release of toxic gases in furniture, stones and indoor decorations will also increase. In winter, most rooms have closed doors and windows, and harmful substances are easier to accumulate indoors, which will also affect human health.
The heating temperature in winter should not be too low: when the temperature is lower than 12 ℃, 80% of sitting people will feel cold and 20% of active people will feel cold. Therefore, hygiene takes 12 ℃ as the lower limit of building thermal environment. If the indoor temperature is too low, it will reduce human metabolic function, slow breathing, subcutaneous vasoconstriction, weaken the resistance of respiratory mucosa, and easily induce respiratory diseases such as colds. Moreover, due to the stimulation of cold on the body, the excitability of sympathetic nervous system increases, and the secretion of catecholamines in the body increases, which will make human blood vessels contract, accelerate heart rate, increase cardiac workload and increase oxygen consumption. In severe cases, myocardial ischemia and hypoxia will cause angina pectoris. Therefore, patients with coronary heart disease should pay particular attention to heating in winter.
Room temperature should vary from person to person: young people have strong metabolic ability and sound self-regulation ability. When stimulated by cold, skin blood vessels can contract to a large extent to reduce the loss of body heat. Therefore, it is more appropriate to lower the temperature. The physiological function of the elderly is decreased, the skin is aging, the elasticity of blood vessels is poor, and the metabolic level is low, so the high temperature point is more appropriate. Infants and young children are relatively young and have low temperature regulation ability. They should pay attention to keeping warm, but infants and young children have strong metabolism and should not be overheated. Therefore, in terms of comfort, it is OK for young people at 12 ~ 14 ℃ and suitable for the elderly at 16 ~ 18 ℃.
The room temperature should be adjusted according to the weather: the lower the outdoor temperature, the lower the indoor temperature setting, because the greater the indoor and outdoor temperature difference is, the worse it is for your health. When people are in a cold and hot environment, they will stimulate the respiratory mucosa and are easy to catch a cold. For the elderly and people with hypertension, the indoor and outdoor temperature difference should not be too large. Because the indoor temperature is too high and the human blood vessels dilate, if you suddenly go outdoors and encounter cold stimulation, the blood vessels contract suddenly. For people with poor blood vessel elasticity such as the elderly and patients with hypertension, it is easy to have cerebral blood circulation disorder, which is very easy to induce stroke.
Generally speaking, according to the research, the most suitable room temperature for the human body should be 18 ℃. At this time, people have good mental state, high work efficiency and the most agile thinking.