Home health preservation

Room temperature has a significant impact on the balance of the human body When the room temperature is too high, people in the room will have their body temperature rise due to poor heat dissipation, causing blood vessels to dilate, the pulse to accelerate, blood circulation to speed up, blood volume to temporarily decrease, and even circulatory disorders to occur. On the contrary, if the indoor temperature is too low, it is not good for the health of the human body, especially the elderly. Therefore, it is necessary to pay attention to taking measures such as ventilation and heating to create a suitable room temperature for oneself. The room temperature changes the most in winter and spring, so it is particularly important to pay attention to adjustment. Under normal temperature and air flow conditions, the indoor temperature in summer should be between 21 and 32 degrees Celsius, with 24 to 26 degrees being the most ideal. The suitable room temperature in winter is 16 to 20 degrees Celsius, and 16 to 18 degrees Celsius is the ideal temperature. The elderly have poor resistance to both cold and heat, so it is very important for their health to adjust the room temperature appropriately. Whether the humidity in a living room is appropriate or not also has an impact on human health. When the air humidity is lower than 30%, a large amount of moisture in the upper respiratory tract mucosa will be lost, thereby reducing the defense function of the respiratory tract and making people feel dry in the throat. When the air humidity reaches 80%, it will make people feel suffocated. Especially in conditions of high temperature and high humidity, people will feel more stuffy and uncomfortable. When the temperature is low and the humidity is high, the loss of body temperature accelerates, making people feel extremely cold again. Therefore, attention should be paid to adjusting the environmental humidity under both cold and hot conditions. In winter, under suitable temperature conditions, the appropriate humidity is 30% to 40%. In summer, under suitable temperatures, the appropriate humidity should be controlled within the range of 30% to 70%. If the indoor humidity is too low and people feel stuffy, they can sprinkle some water appropriately, or wipe the furniture with a wet towel or mop the floor with a damp mop to increase the indoor humidity. If the humidity is too high, you can open the Windows for ventilation or use an exhaust fan to expel the damp air inside the room to the outside to reduce the indoor humidity. A bright and clean room with bright Windows will make people feel comfortable and happy. Sunlight not only has the good effects of killing bacteria and diseases, purifying the air and raising the room temperature, but also can make people feel happy, promote physical health and improve work efficiency. If the lighting is not reasonable and the illuminance is insufficient, people's eyesight will become fatigued, which in turn can lead to general fatigue. The general health benefits of sunlight are, first and foremost, its impact on the spirit and psychology. Abundant sunlight in a residence is a factor for the mental health and happiness of both adults and children. In addition, when it comes to indoor lighting, the following aspects should be noted. (1) It is advisable for residences to face south to increase sunlight exposure. (2) Residential buildings, especially high-rise ones, should maintain a certain spatial distance to prevent the buildings from blocking each other's sunlight. (3) The white walls and ceilings can reflect light and increase the brightness of the interior. (4) The painted furniture and glass Windows inside the room should be wiped clean to create reflection and increase the brightness. (5) It's best not to hang curtains during the day, especially thick and black ones, to allow sunlight to easily penetrate the room. The air in a well-ventilated room usually contains 0.04% carbon dioxide. Although it is non-toxic, an excessive amount can also affect health. After a night with Windows and doors closed, a lot of oxygen in the air has been consumed in the living room, while the concentration of carbon dioxide exhaled from the human body has increased significantly. If the indoor air is not fresh, it will make people feel dizzy and depressed. In addition to having sufficient oxygen indoors, the air also needs to be fresh. Because foul odors are a malignant stimulus to the cerebral cortex, living in a stinky environment for a long time can cause people to feel nauseous, dizzy, fatigued, have poor appetite and lack of energy. The stench in a living room comes from various sources, such as gases exhaled from the gastrointestinal tract, sweat, unclean clothes, shoes, bedding, furniture and other items, moldy and rotten substances stored indoors, as well as air pollution from smoking and cooking fumes. Therefore, it is even more necessary to open the Windows for ventilation and air exchange every morning, which will make people feel refreshed, comfortable all over and energetic. How long should Windows be opened for ventilation? According to experiments, in an 80-cubic-meter residence, when there is no wind and the temperature difference between indoors and outdoors reaches 20 degrees, the air can be exchanged once in about 9 minutes. Therefore, it is generally advisable to keep it no less than 30 minutes. The cleanliness of the environment is closely related to human health. A beautiful courtyard is not only an enjoyment of beauty but also a place for cultivating one's temperament and adding joy to health preservation. If there is a courtyard at home or a small open space in front of or behind the house, you can cultivate some green plants, whether they are tall trees, short shrubs, or flowers and lawns. This not only greens the environment but also purifies the air and helps to reduce some noise. In residential households, to beautify the environment, one can place flowerpots and plants on the balcony or indoors, enjoying the green branches and leaves, which is conducive to a pleasant mood. For the elderly, growing flowers, trees and grass can also add to life's charm and be beneficial to physical and mental health.