. The scents of roses, carnations, lilies of the valley, violets, roses, osmanthus flowers and other plants have obvious inhibitory effects on the growth and reproduction of mycobacterium tuberculosis, pneumococcus and staphylococcus. Cactus and other succulents native to tropical arid areas, the stomata on their succulent stems are closed during the day and opened at night, which absorbs carbon dioxide and produces oxygen at the same time, increasing the concentration of negative ions in indoor air. Plants such as Hupilan, Huweilan, Tequila, Palm, Kale, Sedum, Rooting and Pineapple can also purify the night air. Climbing plants such as Parthenocissus tricuspidata, grape, morning glory, wisteria, rose, etc. Planting around the house can make it climb along the wall or along the shelf to form a green arbor, which can effectively reduce sunlight radiation and greatly reduce the indoor temperature. Lilac, jasmine, rose, violet, mint and other plants can make people relax, feel happy, help sleep and improve work efficiency. Flowers should be based on beautifying the environment, and those that can be pleasing to the eye and purify the air are good flowers. In fact, different flowers should be placed in different places, and some flowers are still not suitable for entering the house, otherwise it will cause air pollution. The fragrance of common flowers plays a sweet role in roses: relaxing nerves, relieving physical and mental fatigue and helping to treat nervous system diseases. Tulip: It can relieve eye fatigue and irritability. Orchid fragrance: relieving lung heat, resolving phlegm and relieving cough is good for people with neurasthenia, but it should not be too strong, otherwise it will also cause dizziness. White orchid fragrance: it can sterilize and purify the air. Chrysanthemum flower fragrance: it can clear away heat and dispel wind, clear liver and improve eyesight, and can be used as an auxiliary treatment for headache. Clove: It has obvious air purification ability and strong sterilization ability. Putting cloves indoors can prevent infectious diseases to a certain extent, but its fragrance is rich and it is not suitable to smell, otherwise it will make you dizzy. Narcissus: It can make people feel quiet and warm. Clever flower arrangement in the hall can prevent diseases ... >>& gt Three types of plants are suitable for indoor display. Experts pointed out that indoor flowers should be planted with flowers that can absorb toxic gases, purify the air or sterilize, and some flowers themselves have the function of preventing and treating diseases. For example, chrysanthemum and wintersweet have the ability to absorb sulfur and hydrogen fluoride, and the volatile oil secreted by thyme and clove has bactericidal effect. Jasmine, Milan, osmanthus, crape myrtle, rose, rose, etc. It can emit volatile oil with bactericidal effect, while Ren Mei gum and honeysuckle have a strong absorption effect on fluorine, and so on. It is not suitable to grow flowers in wards and bedrooms at night. Many flowers can purify the air and promote health. But if you keep some flowers at home, it will become the source of the disease or the "killer" who will lead to the recurrence of the old disease. Therefore, experts suggest that we must understand the nature of flowers before planting them to prevent physical problems. Patients should not keep potted flowers indoors-because the soil in the flowerpot will produce fungal spores. When they spread into the air, they can easily invade people's skin, respiratory tract, external auditory canal, meninges and brain, causing infection, which is very harmful to patients with existing diseases. Flowers should not be placed in the bedroom at night-because most flowers absorb carbon dioxide and release oxygen through photosynthesis during the day, but at night, it is just the opposite. Therefore, it is best not to put flowers in the bedroom. Flowers planted during the day will be moved out at night, at least not in the bedroom, so as not to affect people's health. Too much fragrance of flowers will do harm to your health ... >>& gt Some medical experts have done experiments and tests on flowers that can't be ignored indoors. The results show that people who often smell the flowers will have a certain impact on their mood and health. Chemical experts believe that the fragrance emitted by flowers consists of dozens of volatile compounds, including aromatic esters, alcohols, aldehydes, ketones and other substances. These substances can stimulate people's respiratory center, thus promoting people's respiratory function. If people breathe the fragrance beneficial to human body, they can make the brain get enough oxygen, regulate people's nervous system, promote blood circulation, and make energy, thinking and vitality reach a very high level. Therefore, flower therapy and aromatherapy came into being. Experts pointed out that the fragrance of flowers can not only cure diseases and protect health, but also cause diseases and harm people's health. The fragrance of flowers in the air is too strong, and the oxygen content is relatively reduced, which will stimulate people to hyperventilate, reduce the oxygen content in the blood, and cause symptoms such as headache, dizziness and nausea. Some people with allergic constitution will be stimulated by some pollen, resulting in allergic asthma and allergic rhinitis. For example, orchids can help relieve hot cough, and may also play a catalytic role. The smell of orchids is too strong, which makes people feel too excited and dizzy The fragrance of lilies is exciting, but if it lasts too long, it will make people dizzy and may also make people insomnia.