Sound: Its Impact on the Human Body and the Fight Against It

Published: 2021-09-15 08:25:09
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Category: Biology, Physics

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Many studies have been conducted are highly concentrated on the Physiological responses of Human in various environmental stimuli (Seals et. al., 1992). Studies concerning the relationship of sound to human are important because sounds could affect the emotional, mental, and physiological state of human. The human ear is capable of detecting sound wave frequencies ranging approximately between 20Hz to 20 kHz, but human ear is more sensitive to sounds with 1Hz to 4 kHz (Smith, 2011). Many studies have proved that there is a relation between sounds and human heart beat. Hunter (2017) stated that the heart beat is controlled by the body’s arrangement of electrical and synthetic reactions managed by the sensory system. The thoughtful and parasympathetic sensory systems can change how real capacities are functioning in times of pressure. The human body experiences changes including quicker breathing, changes in student expansion, and a speedier heart rate. It is this reflex and reaction that can be activated by sound, particularly noisy and sudden clamors that trigger the sensory system to respond. In an examination from Hong Kong, older volunteers who tuned in to unwinding music for 25 minutes per day for a month brought down their systolic pressure by 12 and their diastolic pressure decreased by 5, while a control group that did not tune in to music had no adjustment in pulse. Similarly, at Abbot Northwestern Hospital in Minneapolis, the patient undergone cardiac surgery became less anxious and experienced less pain when they listened to music after the surgery (Harvard University, 2018). It concluded that listening to music has positive impacts to human body. However, in contrary to music, noise, defined as undesirable sound could negatively affect human behavior.
In Philippines, the National Pollution Control Commission regulated the law in improving various environmental pollution, like noise pollution commonly known as Pollution Control Law. Major factors and causes contributing in noise pollution are jeepneys, buses, and tricycles which are the common means of public transportation in the Philippines but among these factors, tricycles, a three-wheeled public utility vehicle and second of the most popular means of transportation in the Philippines are the major causes of air and noise pollution. Tricycles are also responsible for noise pollution measuring at 83-97 decibel (Asian Development Bank, 2005). Noise pollution is a pollution created by annoying noises from human, animal, or machines that may cause many health impacts to human (Nepomuceno, 2010). A study conducted quantified the levels of noise contributed by tricycles in the roadside residential area and found out that extreme exposure to noise pollution may cause temporary hearing loss, communication disruption through the reduction of the ability to hear sounds and it can also disturb sleep, impairing the quality of life (Vergel, Cacho and Capiz, 2004). Meanwhile, in poverty, Philippines was listed as 28th poorest country in the world based on the measured Gross Domestic Product (GDP) per capita which showed the quality of living in the Philippines (Focus Economics, 2018). Studies showed that there is a linkage between poverty and environmental problems experienced by people. Filipinos living in slum, characterized by overcrowded residency, inadequate sewage disposal and more risky location are most likely prone to different hazards and risks, either man-made or natural. Noise pollution along with other environmental risks puts a great pressure and anxiety on people’s lives particularly to household dwelling in slums (Ballesteros, 2010)People also experienced high frequency of sound when they are riding in jeepney. In Marikina, one usual contributor of noise is the jeepney. Passengers commonly called it “patok”. They describe the patok jeepney as a jeepney painted with splendid outlines, furnished with loud sound system, and makes a lot of noise, for example, screeching tires, noise while accelerating, scratching tires and other engine sounds (Pascua, 2009). Jeeps coming from different localities around Marikina pass around in the town of Marikina that head to Cubao. If jeeps have unique designs and highlighted features, they are also known for playing music with great volume that the passengers considered as noise and no longer a music (WordPress, 2014). They usually play heavy-bass music without knowing the effects it could bring in the health of the passengers. Many passengers complained and asked drivers to stop playing intense music because they feel the physiological and mental effects of a loud music. The louder the music, the tension on human’s heart becomes higher. The loud beats of music triggers heart to beat faster (Fitaihi, 2013). While many studies concern about the hearing impacts of loud noises to people, the attentiveness of the driver while engaging in loud music is another problem. Drivers hearing loud music becomes distracted and it also affects the alertness of the driver (Strick, 2000).

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