![]() ![]() In both industrial studies and community studies, noise exposure is related to raised catecholamine secretion. Aircraft and road traffic noise exposure are associated with psychological symptoms but not with clinically defined psychiatric disorder. Studies of occupational and environmental noise exposure suggest an association with hypertension, whereas community studies show only weak relationships between noise and cardiovascular disease. Noise interferes in complex task performance, modifies social behaviour and causes annoyance. Exposure to transport noise disturbs sleep in the laboratory, but not generally in field studies where adaptation occurs. Noise is a prominent feature of the environment including noise from transport, industry and neighbours.
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