Valid pollution losses go beyond hearing loss; understand

Valid pollution losses go beyond hearing loss; understand


High and repetitive noises can cause a cascade of problems in the body; Know which care to take and the importance of paying attention to hearing

Sounds of engines, horns, works, high volume music … it is difficult to find someone who is not annoyed in spending a lot of time in a noisy place. Beyond the discomfort, the Excess noise it can cause damage to health beyond hearing – Those suffering from problems such as hearing loss and tinnitus.

“When these sound waves enter the ears, they vibrate the eardrum, as well as the very small bones and the cells of the ear, which triggers the electric signs that this brain It sounds like a sound “, explains the otolaringoiatra Nathália Prudencio, master in Otoneurology at the Federal University of San Paolo (UNIFESP) and a vertigo and acute specialist”. But when this sound is extremely high or frequent, it can damage the human body. “

The physiological effects of excess noise are generally induced by two different systems: that of the adnnual-hypofisio-year-old hypolar axis (Hha). The first is activated by a chain reaction that leads to the excretion of adrenaline and norepinephrine. The hyperactivity of the Hha axis is associated stress chronic, when the body secrete the cortisol hormone.

In the short term, much noise causes irritability, difficulty concentration, fatigue, increase in heart rate and difficulty sleeping. “In the long term, there is an increased risk of cardiovascular diseases, such as hypertension, infarction AND hitpsychological disorders, anxiety and depressionMetabolic problems and even cognitive impairment due to chronic stress “, says the otolaringologist Augusto Riedel Abrahao of the Israeli hospital Albert Einstein.

Some studies correan pollution also corrected to gastrointestinal changes, such as indigestion, gastroduodenal ulcer and constipation. THE sleep It is another aspect damaged by noise. “The night noise can fragment of the sleep structure, inducing awakening, creating difficulty falling asleep and moving on to a lighter and less reparative sleep,” says Prudencio.

Chronic noise rest disorder is associated with a variety of negative health results, including obesity, diabetes, hypertensionCardiovascular disease and worsen in cognitive function.

Daily life

All this discomfort caused day and night has damaged many people and attracted the attention of experts and authorities. THE World Health Organization (WHO) Estimation That over 1 billion young people and adults aged between 12 and 35 are at risk of loss of hearing due to chronic exposure to noise, including those with excessive use of headphones.

“But even urban sounds can be dangerous. The exposure limit considered safe for sounds of 85 decibels is eight hours a day. For 110 sounds of decibel, the orientation is not exceeding 30 minutes and for sounds of 120 decibels, only 15 minutes”, explains the Otoneurologist.

To get an idea, 85 decibels are approximately the same level as vacuum cleaner powder, electric instruments and blenders. As a practical rule, if you need to raise your voice to talk to someone else a meter away, the sound is excessive.

“The impact of health noise is still underestimated, but more and more studies show that noise pollution is a public health problem. The creation of noise reduction policies and making the population aware of their risks are essential passages to minimize the damage caused by excess sound, “says Abrahao.

Important care

Ear protections can help those who work in noisy services, such as factories or buildings. They help blocking sound waves before penetrating the internal ear, drastically reducing the impact of extreme sounds. Avoid listening or watching television with too high a volume are also good practices.

Even physical barriers, such as acoustic insulation inside, and pauses in noisy environments help. “Today, smart watches and cell phones make the level of decibel of exposure and send notices to their users,” says Einstein’s doctor.

Invest in relaxation techniques, such as meditation and deep breath and inside physical activity Regular and quality sleep and contact with silent environments and in the middle of nature they can reduce the negative effects of health noise.

Source: Terra

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