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The harm of noise
The harm of noise to sleep: When the sudden noise is 45 decibels, it can awaken 10% of the people. When it reaches 60 decibels, it can awaken 90% of the people. Noise Hazards to Hearing: Noise can cause tinnitus, deafness, and hearing impairment. When it exceeds 55 dB, it is noisy. Long-term exposure to noise above 85 decibels, the incidence of deafness was 21% after many years. The harm of noise to physiology? Noise can cause nervousness, irregular heartbeats, and high blood pressure. Under high-noise conditions, some women's sexual dysfunction, menstrual disorders, and miscarriage rates in pregnant women will increase. The harm of noise to children: Noise can hinder children's intellectual development. Children in noisy environments have 20% less mental development than children in quiet environments.