Separate-try not to put electrical appliances in a room, and if the sound pressure level is too high, don't put them in or near the office.

Troubleshooting in time-the noise of electrical appliances working in spite of illness is much louder than that of normal work, so once a fault occurs, it must be eliminated in time.

Staggered use-try to avoid using all kinds of electrical appliances at the same time.

Planting flowers and plants-planting flowers and plants can eliminate some noise.

Supplementation of nutrition-Noise will increase the consumption of certain amino acids and vitamin B in the human body, thus causing the imbalance of human function. Supplementing proper amount of amino acids and vitamins can increase the human body's tolerance to noise. Experts suggest that people who work and live in noisy environment for a long time should supplement some protein and foods rich in vitamin B in a timely and appropriate way.

Noise reduction principle: 1. Attenuation at the sound source; 2. Attenuation during transmission; 3. Attenuation of the receiver.

Methods: 1. Enclose the sound source and build a sound insulation wall at the sound source to prevent the noise from spreading directly.

2. Strengthen greening and plant trees on both sides of complex roads to form barriers.

3. Add sound insulation facilities.

4。 Lubricate the machine sufficiently to prevent noise and protect the machine.

5. Put a sound insulation device in the ear, such as a good earplug.

How to sleep well can take the following measures.

(1) Close your eyes and be quiet. After going to bed, close your eyes first, then open your eyes slightly to keep in touch with the outside world. Although mental activity is still in operation, the tension of sympathetic nerve activity has been greatly reduced, which induces the human body to gradually enter a sleepy state.

(2) Ming and Ancient Heaven Method. After going to bed, lie on your back and close your eyes, cover your left ear with your left palm, cover your right ear with your right palm, and tap the back of your head with your fingers to make it hear the whirring sound. The number of bounces until you feel slightly tired. After you stop bouncing, your head will slowly get close to the sleeping pillow, and then it will naturally be placed on your sides, and you will soon fall asleep.

(4) Sleep induction. Listening to plain and rhythmic sounds, such as the sound of trains running, the chirping of crickets, the sound of dripping water and the sound of falling spring rain, or music hypnosis tapes, is helpful to sleep and can also establish conditioned reflex to induce sleep.

(5) drink hot milk. Drinking a cup of hot milk with sugar before going to bed can increase the secretion of insulin, increase the entry of amino acids into brain cells and promote the brain to secrete serotonin for sleep. At the same time, milk contains a small amount of morphine-like substances, which has the effect of calming and calming the nerves, thus promoting the human body to sleep peacefully.

6) Appropriate sleeping position. Of course, the sleeping position is comfortable and can vary from person to person. However, it is better to sleep on your side. Cao Cishan, a health care expert, pointed out in Sleep Tactics: "Lie on the left side and bend your left foot, bend your left arm, hold your head with your hand, stretch your right foot, and put your right hand between your right thighs. The right bit is the opposite. " This sleeping position is conducive to relaxing the whole body and sleeping soundly.

(7) If you are tired and have difficulty sleeping, you may wish to eat apples, bananas, oranges, oranges, pears and other fruits. Because the fragrance of this fruit has a calming effect on the nervous system; The sugar in fruit can inhibit the cerebral cortex and make it easy to fall asleep.