Living in this kind of house will definitely make you live longer

Suitable temperature, soft lighting, lush green plants...a comfortable living environment makes people happy. Studies have found that a comfortable living environment can not only make people happy, but also prevent diseases and enhance physical fitness, while a messy living environment can induce dozens of diseases, even cancer. What should an optimal living room look like? You may wish to refer to the following 6 standards.

Room temperature: 20℃

Studies have found that a constant room temperature is important for health. The room temperature around 20℃ is most comfortable. This temperature helps the body dissipate excess heat. If the room temperature exceeds 25℃, the human body will begin to absorb heat from the outside and will feel hot. If the room temperature exceeds 35℃, the human sweat glands will start to activate and dissipate body heat through sweating, causing discomfort such as increased heartbeat, accelerated blood circulation, dizziness, fatigue, etc. On the contrary, when the temperature is between 8℃ and 18℃, the human body will dissipate heat outwards; when the room temperature is below 4℃, you will feel cold.

At the same time, 20℃ is also the best sleeping temperature. When the room temperature is above 24℃, sleep will become shallow, and body movements and awakenings during sleep (the number of times you wake up and turn over) will increase. It is not easy to enter deep sleep if the sleeping temperature is below 18℃.

Humidity: 40%

The north has entered the winter heating period. The house is warm but also slightly dry. Studies have found that the high incidence of influenza is closely related to low air humidity. Experts say that when the indoor air humidity is lower than 40%, dust, bacteria, etc. can easily adhere to the mucous membrane, irritate the throat, cause coughing, and easily induce respiratory diseases such as bronchitis and asthma.

However, too much humidity is not good for health. People may feel nausea, loss of appetite, irritability, fatigue, dizziness, etc. A study by the University of Otago in New Zealand found that living in a damp and moldy room can also increase children's risk of allergic diseases such as asthma and eczema. In a high humidity environment, mold and mildew are more likely to grow.

Experts say that according to my country's indoor air standards, indoor humidity should be between 40% and 80% in summer, and should be controlled at 30% to 60% in winter. The suitable indoor humidity for the elderly and children is 45%~50%, and the suitable indoor humidity for patients with respiratory diseases such as asthma is between 40%~50%. In southern my country, the outdoor humidity is high on rainy days in summer, so the time of opening windows should be reduced. When the weather is fine, open windows more often to ventilate and dissipate moisture. Some moisture-absorbing boxes or desiccants can be placed in wardrobes and cupboards. The air is dry in northern regions in winter. You can use a humidifier, sprinkle some water indoors or mop the floor twice a day. It should be noted that if you use a humidifier, it is best to use purified water and clean and disinfect the machine regularly.

Ventilation: half an hour every day

In our daily lives, "waste gas" is produced indoors all the time: garbage in the kitchen, bathroom, and trash cans will cause air pollution after a night; carpets that are not cleaned for a long time and bedding and pillows that are not dried in the sun are very likely to breed mites; too much dust accumulates on the top of bookshelves and furniture, which aggravates the floating pollution in the air... Especially after the heating period in the north, many people keep their windows closed at home for fear of cold air coming in. Due to poor indoor air circulation, many people's body resistance begins to decline and they are frequently "attacked" by diseases.

Experts say ventilation is an effective way to improve indoor air. The best time for ventilation is from 9:00 to 11:00 and from 14:00 to 15:00 every day. You can ventilate the kitchen, bathroom, and living room for half an hour. If you encounter haze, try to open windows as little as possible for ventilation, and use an air purifier and humidifier. The kitchen should be equipped with a range hood with good purification effect to minimize frying, stir-frying and deep-frying that cause high fume pollution, and do not smoke indoors. In addition, regularly remove dust every half a month or a month to reduce harmful particles in the air. It is also necessary to remind you that some high-rise buildings have poor ventilation and the window opening time should be relatively extended.

Light brightness: no more than 90%

When selecting and using lamps, most families only pay attention to the appearance, energy saving and power, and often ignore the illumination, color temperature and other standards related to a healthy lighting environment.

In fact, having too many and too bright lamps in the house not only wastes resources, but also causes great stimulation to the eyes and easily causes irritability. Different spaces in the home have different functions and different requirements for light intensity. Generally speaking, the brightness of spaces such as living rooms, study rooms, and dining rooms should be brighter than that of spaces such as bedrooms and kitchens, which is more in line with the human body's work and rest patterns. Indoor lighting should be kept as soft, uniform, and free of glare and shadows as possible. The brightness of the adjustable light source should be controlled between 60% and 80%, and the maximum brightness should not exceed 90%.

In addition, in terms of color, colorful rotating lights should be avoided. In the living room, study, and kitchen, it is best to choose cool-toned, that is, white light lamps that play a major lighting role; bedrooms, bathrooms, and balconies should use warm-toned light sources that emit yellow light. For local lighting, use a desk lamp with good light-shielding properties to block the more infrared radiation contained in this type of light source. Try to avoid mirrors, glass and other decorations on the wall. Finally, whether in the office or at home, try to use incandescent lamps instead of fluorescent lamps. The latter's ultraviolet and blue light can cause damage to the skin and retina.

Green plants: two pots per 10 square meters

Placing green plants at home can not only purify the air and increase oxygen content, but also relieve tension. A study by the University of Exeter in the UK found that placing potted plants in the workplace can improve employees' psychological comfort and the company's operating performance, and can also reduce the chance of employees changing jobs.

Experts say that plants should be selected and placed according to the size of the room. Balconies, halls and other sunny places are suitable for placing green plants. Generally speaking, it is more appropriate to place two pots of plants 1.5 meters high in a room of about 10 square meters. Placing green plants next to the window can not only absorb dust, purify the air and prevent dryness, but also effectively reduce noise pollution. The first choice is those with large size and many leaves, such as golden diamond, green radish, evergreen, green overlord, etc.

Due to photosynthesis, green plants absorb carbon dioxide during the day, but at night, they compete with humans for oxygen and release pollutants such as carbon dioxide. Therefore, it is best not to place large potted plants in the bedroom. If you do, move them out at night to avoid insufficient oxygen, which may cause dizziness, difficulty breathing and other problems. It is best to choose smaller plants such as green ivy and spider plants, and do not exceed two or three pots.

Sunshine: at least 2 hours per day

Sunlight is a necessary condition for life. Studies have found that indoor sunlight should not be less than 2 hours a day.

The "National Standard of the People's Republic of China for Urban Residential Area Planning and Design" also stipulates: "The sunshine standard for residential buildings in large cities is ≥ 2 hours on the Great Cold Day and ≥ 1 hour on the Winter Solstice. In buildings where elderly people live, the sunshine on the Winter Solstice should not be less than 2 hours." Rooms with good lighting have a great psychological and physiological impact, especially on the elderly and children. Children are in the stage of physical development, and the ultraviolet rays in the sun can help them synthesize calcium in their bodies and strengthen their bones; most elderly people have the problem of bone loss, and getting more sun exposure can prevent osteoporosis to a certain extent.

If the room is dark due to its orientation, the American website "Architecture Structure and Interior Design" suggests that the room can be made spacious and bright through the use of color. In areas where there are frequent activities, such as living rooms or bedrooms, the walls should be painted in bright colors such as light blue or mint green to make the room appear open and spacious.