Excessive exposure to noise can damage ()
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4. The health-harmful sound; the sources of it: the modes of evaluating and limiting of noise it out- and in-door ambient
Background:
- Although some Presbyacusis may occur naturally with age, in many developed nations the cumulative impact of noise is sufficient to Impair the hearing of a large fraction of the population over the course of a lifetime
- Elevated workplace or other noise can cause hearing impairment, hypertension, ischemic heart disease, annoyance, and sleep Disturbance
• Changes in the immune system and birth defects have been attributed to noise exposure
- The effects of noise on hearing vary among people → some people's ears are more sensitive to loud sounds, especially at certain frequencies
- The frequency of a