How many decibels of noise affect people's normal rest?

More than 70 decibels will affect people's normal work and study.

Above 70 decibels will interfere with conversation and affect work efficiency. Living in a noise environment above 90 decibels for a long time will seriously affect hearing and cause neurasthenia, headache, elevated blood pressure and other diseases. If you are suddenly exposed to a noise environment as high as 150 dB, the hearing organs will be seriously damaged, resulting in rupture and bleeding of the eardrum and complete hearing loss in both ears.

In order to protect hearing, the noise should be controlled at no more than 90 decibels; In order to ensure work and study, noise control should not exceed 70 decibels, and in order to ensure rest and sleep, noise control should not exceed 50 decibels.

Extended data;

Harm of noise

1, environmental noise increases the risk of fatal heart disease. 20 1 1 A study completed by the Joint Research Center of the World Health Organization and the European Commission found that living in an environment with serious traffic noise such as airplanes and trains for a long time will lead to an increase in the risk of hypertension and fatal heart disease.

2. Noise especially disturbs people who accomplish multiple tasks at the same time. Dr Anthony Wei Gena, an expert in cognitive neuroscience at Stanford University in the United States, said that it is more difficult for people to stop daydreaming and concentrate when they are disturbed by noise, so it is more difficult to accomplish multiple tasks at the same time. Once the work at hand is interrupted by noise, it is often more difficult to go back to the work that has just been completed.

3. Noise will damage memory when listening to music. Many people like to "cover up" annoying noise with music. Although listening to music can improve mood and alertness, listening to music will actually weaken the ability of recall and memory. Studies have found that listening to music you don't like is better for your memory. In addition, no music can improve memory as well as quiet meditation.

Reference source; People's Network-Environmental noise increases the risk of fatal heart disease. Watch out for the seven hazards of noise.

Reference source; Baidu encyclopedia-noise level