Noise Pollution 5

Noise pollution is excessive, displeasing human, animal or machine-created environmental noisethat disrupts the activity or balance of human or animal life. The word noise comes from the Latin word nauseas, meaning seasickness.
The source of most outdoor noise worldwide is mainly construction and transportation systems, including motor vehicle noise, aircraft noise and rail noise.[1][2] Poor urban planning may give rise to noise pollution, since side-by-side industrial and residential buildings can result in noise pollution in the residential area.
Indoor and outdoor noise pollution sources include car alarms, emergency service sirens, mechanical equipment, fireworks, compressed air horns, groundskeeping equipment, barking dogs, appliances, lighting hum, audio entertainment systems, and electric megaphones, and loud people.

Noise health effects are both health and behavioral in nature.[citation needed] The unwanted sound is called noise. This unwanted sound can damage physiological and psychological health. Noise pollution can cause annoyance and aggression, hypertension, high stress levels,tinnitus, hearing loss, sleep disturbances, and other harmful effects.[3][4][5][6] Furthermore, stress and hypertension are the leading causes to health problems, whereas tinnitus can lead to forgetfulness, severe depression and at times panic attacks.[4][7]
Chronic exposure to noise may cause noise-induced hearing loss. Older males exposed to significant occupational noise demonstratesignificantly reduced hearing sensitivity than their non-exposed peers, though differences in hearing sensitivity decrease with time and the two groups are indistinguishable by age 79.[8High noise levels can contribute to cardiovascular effects and exposure to moderately high levels during a single eight hour period causes a statistical rise in blood pressure of five to ten points and an increase in stress[3] and vasoconstriction leading to the increased blood pressurenoted above as well as...