Kid's, don't play near the street, either. (Lifelines).Low-level but chronic noise from daily local traffic can cause stress in children and raise their blood pressure, heart rate, and levels of stress hormones, say researchers from Cornell University Cornell University, mainly at Ithaca, N.Y.; with land-grant, state, and private support; coeducational; chartered 1865, opened 1868. It was named for Ezra Cornell, who donated $500,000 and a tract of land. With the help of state senator Andrew D. . Their study compared children living in a neighborhood with a noise level equal to that of the average quiet office, with children living in a noisier area, with noise levels roughly similar to that made by an average dishwasher. And yes, the differences in noise levels did affect the children's health Children's Health Definition Children's health encompasses the physical, mental, emotional, and social well-being of children from infancy through adolescence. . Those living in the louder areas displayed many symptoms of stress-related anxiety, nervousness, and even diminished motivation. And this can be cause for concern, as higher levels of stress hormones present in younger children is linked to future adult illness, including elevated cholesterol, heart disease, and a decreased supply of the body's disease-fighting immune cells. So should you be concerned? Well, the typical urban residential neighborhood in the United States United States, officially United States of America, republic (2005 est. pop. 295,734,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third largest country in population and the fourth largest country in area. has decibel decibel (dĕs`əbĕl', –bəl), abbr. dB, unit used to measure the loudness of sound. It is one tenth of a bel (named for A. G. Bell), but the larger unit is rarely used. levels between 55 and 70, which is at the level of the noisy neighborhood in this study. (Journal of the Acoustical Society of America The Journal of the Acoustical Society of America (abbreviated J. Acoust. Soc. Am. or JASA) is a scientific journal in the field of acoustics, published by the Acoustical Society of America. It contains technical articles on sound, vibration, speech and other topics. ) |
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