Đeo tai nghe (tai phone, headphone)

Đeo tai nghe (tai phone, headphone) nhiều gây ra nhiều tác hại tới sức khỏe, thính lực của người sử dụng. Nếu đeo tai nghe nhe nhạc liên tục trong nhiều giờ, nhiều ngày sẽ dẫn đến việc tế bào thần kinh trong ốc tai làm việc quá sức, gây suy giảm thính lực, thậm chí bị điếc.Mỗi người có khoảng 16.000 tế bào của tai trong (hay ốc tai), trong đó 3.000 tế bào cho phép nghe, còn những tế bào khác có chức năng khuếch đại âm thanh và chọn lọc tần số. Một sự vang âm quá mạnh trong ốc tai sẽ gây ra trạng thái kích thích, hậu quả là làm mệt thính giác. Sau đó, trầm trọng hơn là sự mất thính giác đối với những tần số cao.Gần đây, nhiều thanh thiếu niên quen dùng tai nghe để nghe nhạc ít nhất một đến hai giờ mỗi ngày, với cường độ lớn đến mức thậm chí người đối diện cũng nghe được! Nhiều bạn trẻ còn có thói quen nghe nhạc rồi ngủ quên luôn. Khi ngủ, não bộ cần nghỉ ngơi thì lại phải chịu đựng sự tra tấn của âm thanh. Hành vi có hại này làm biến đổi sự vận hành chức năng của các tế bào thính giác.Nhiều bạn trẻ sau khi nghe nhạc xong, vẫn thấy lùng bùng trong lỗ tai hoặc nghe những âm thanh khác bị tắc nghẽn do sử dụng máy nghe nhạc trực tiếp bằng tai nghe với âm thanh lớn quá mức cho phép, nhưng họ không đến bệnh viện khám hay thăm khám quá muộn, khi mà thương tổn đã trở thành vĩnh viễn.Sức nghe của tai sẽ giảm nếu mọi người tiếp xúc với âm thanh có cường độ 85– 90db liên tục trên hai giờ/ngày và kéo dài một đến hai năm. Hiện hầu hết các máy nghe nhạc đeo tai đều có công suất cực đại đến 120db, gây ra nhiều áp lực âm thanh trực tiếp đến tế bào thần kinh.Có ba tác nhân dẫn đến giảm thính lực, đó là thời gian tiếp xúc với tiếng ồn, cường độ âm thanh và khoảng cách. Trên một giờ tiếp xúc với những âm thanh có cường độ mạnh, tai cần nghỉ ngơi tối thiểu một giờ. Không nên ngủ quên với headphone, earphone vẫn còn đeo tai. Nếu nghe nhạc to đến mức người ngồi xung quanh nghe được hoặc phải nói to hay hét lên khi trả lời ai đó, là dấu hiệu nhạc quá lớn, gây tổn thương đến tế bào thần kinh của tai.Các bạn trẻ có thói quen nghe nhạc, học ngoại ngữ bằng tai phone nên nghe với cường độ âm thanh nhỏ hoặc vừa phải. Thời gian nghe chỉ 2 đến 3 tiếng/ngày, đặc biệt lưu ý không nghe nhạc bằng tai nghe khi ngủ (vì khi ngủ não bộ cần được nghỉ ngơi). Khi thấy có biểu hiện ù tai, chóng mặt, nhức đầu, hoa mắt… nên đi thăm khám ngay vì đó có thể là những biểu hiện chấn thương âm thanh cấp tính, đe dọa chức năng thính giác.

Kết quả (Anh) 1:

Wearing headphones (ear phone, headphone) more inflict more harm to your health, the user's hearing. If wearing headphones nhe music continuously for several hours, several days will lead to nerve cells within the cochlea overwork, cause hearing impairment, even deafness. Each person had about 16,000 cells of the inner ear (cochlea), in which 3,000 cells allows to hear, did the other cells have functional audio amplifier and select the filter frequency. An acoustically too strong in the cochlea will cause excitation, consequently do get tired of hearing. After that, the worse is the loss of hearing for the high frequencies. Recently, many youth are familiar with headphones to listen to music at least one to two hours each day, with great intensity to the point that even people hear the opposite! Many young people also have the habit of listening to music and always sleeping. When sleeping, the brain needs to rest then have to endure the torture of the sound. This harmful behavior changes the function of the hearing cells. Many young people after the player has finished, still see Hitman flared in the ear or hearing the other sounds congested due to the use of live music by headphones with big sound excessive, but they do not go to the hospital or clinic visit too late, when the injury has become permanent. Listening ear's power will be reduced if people are exposed to sound intensity 85-90db continuously on two hours/day and lasts one to two years. Currently most of the player wearing the ear has a maximum capacity of up to 120db, cause more sound pressure directly to the nerve cells. There are three factors leading to the decrease of hearing, it is the time of exposure to noise, sound intensity and distance. On a one-hour exposure to the sound of strong intensity, ears need rest a minimum of one hour. Should not be asleep with headphones, earphone is still worn in the ears. If listening to music loud to the point that people sit around listening to or have to speak louder or scream when someone answered, the music is too loud, causing injury to the nerve cells of the ears. Young people have the habit of listening to music, learning a foreign language by ear phone should hear sound intensity with small or just right. Time to hear only 2 to 3 hours per day, especially note do not listen to music with headphones while sleeping (as when sleeping the brain needs a break). When you see the expression of tinnitus, dizziness, headache, dizziness ... should go visit right now because that might be the manifestation of acute acoustic trauma, threat of auditory function.

Kết quả (Anh) 2:

Wearing headphones (ear phones, headphones) caused much more harm to health, the user's hearing. If headphones playing, continuously for many hours, many days will result in nerve cells in the cochlea overworked, causing hearing loss, even diec.Moi 16,000 people of ear cells in (or cochlea), which allows listening to cell 3000, while other cells can function audio amplifier and frequency selectivity. An acoustically too strong in the cochlea causes the excited state, the consequences are as tired of hearing. Later, more serious is the loss of hearing for frequencies cao.Gan, many teenagers are familiar with headphones to listen to music for at least one to two hours every day, with great intensity that even people opposite also hear! Many young people also have the habit of listening to music and then fall asleep. During sleep, the brain needs to rest, then had to endure the torture of sound. This harmful behavior alters the operation of the cell function giac.Nhieu young listeners after listening done, still see outbreaks in the ear down to hear other sounds or blocked by using players live music by headphones with great sound excessive, but they are not to visit the hospital or too late, when the damage became permanent hearing ear vien.Suc will decrease if people exposed to 85- sound intensity 90dB continuously on two hours / day and lasts one to two years. Currently most of the ear player has a maximum capacity of up to 120db, causing the sound pressure directly to the nerve cells kinh.Co three agents resulted in a hearing loss, it is time exposure noise, sound intensity and distance. On the one hour exposure to intense sound, the ear needs to rest at least an hour. Do not fall asleep with headphones, earphones still wearing ear. If listening to the people sitting around to hear or to speak loudly or shout when someone answers, a sign of loud music, causing damage to the nerve cells of young tai.Cac listen habitually music, foreign language learning by ear phone to listen to the sound intensity of small or moderate. Playtime is only 2 to 3 hours / day, special attention is not listening to music with headphones while sleeping (sleep because the brain needs a rest). When you see signs of tinnitus, dizziness, headache, dizziness ... should visit the doctor immediately because it could be the sound manifestations of acute injury, threat of auditory function.

Kết quả (Anh) 3:

Put on headphones (headset phones, headphones) and more caused so much impact on the health of people, the use of hearing. If you wear a headset to listen to my music, for many days, can lead to nerve cells in the cochlea of overwork leads to hearing loss, even by the I C.M I are about 16 cells (cochlear cells or in the ear), in 3000 allowed to listen to, these different cell sound amplification function and frequency selection. A voice in the excited state of sound in the cochlea is too strong, the result is the hearing. After more severe hearing loss frequency of cao.g n teenagers, use a headset to listen to music, at least one to two hours every day, heard of strength to achieve even the man opposite. Many young people have been used to listening to music when they fell asleep, sleep, the brain needs to rest, suffer the sound of torture. These harmful acts to change the function of GI cells, c.nhi u ear after listening to the music of young people, or think we should find hear different voices blocked in the ear or use computer directly with the headset to listen to music, sound more allowed, but they did not go to the hospital to see, or to found too late, when the injury has become a permanent VI N.S C ear will be reduced, if everyone has contact, the sound intensity in the 90dB 85 - continuous two hours / day, lasted one to two years, most of the computers are wearing ear to listen to music he has great power In 120dB, there's a lot of pressure, causing direct sound kinh.c cell God three substances cause hearing loss, this time exposure to noise, sound intensity and sound in the distance. Enhance the contact strength of one hour, night ears need to rest for at least an hour. Shouldn't sleep on earphone still wearing headphones, ears. If you listen to the music, or the people around to scream, or answer, is a sign that the music is too loud, causing damage to nerve cells tai.c, C young people accustomed to listening to music, listening to the phone to learn a foreign language and small intensity or just by ear. Time is only 2 to 3 hours day, pay special attention to cannot use the headset to listen to music when (because of sleep when the brain needs rest). When tinnitus, dizziness, headache, dizzy, so go check, because this may be the expression of acute trauma voice, hearing function of threat.