The sudden onset of ringing in the ears can be very frightening. This is called tinnitus. The sounds can include chirping, hissing whistling, ringing, buzzing, and more.
People think that the sounds are in their ears, but they're not. They are in the brain.
Many incidents can cause tinnitus; however the most common is the result or some exposure to loud noises or noises. The loud noise actually damages some delicate cells in the inner ear. This causes a loss of hearing to some degree, and the noise of tinnitus results. It's fairly common for people who work around loud noises to have such damage--called acoustic trauma. This group includes military personnel, police, industrial workers, and people who are around recreational gunfire or similar noises without adequate ear protection.
What level of noise is safe? And how is sound measured? Loudness is actually the pressure of sound waves, and is recorded as decibels (dB.)
Some examples are:
A quiet room: 30 dB
Typical conversation with a friend: 45 to 60 dB
Vacuum cleaner: 75 dB
Margarita Mixer: 85 dB
In-sink garbage grinder: 90 dB
Large truck with no muffler: 90 dB
Someone yelling: 90 dB
Electric saw: 110 dB
Noisy nightclub with live music or DJ, Rock concert: 115 dB
Shotgun blast: 150 dB
Jet aircraft, 50 meters away: 140 dB
Cannon fire, 50 ft away: 200 dB
Any sound below 80dB is safe for your ears and hearing. If you're frequently around noise greater than 85 dB, your hearing can suffer. One isolated blast of 135 to 140 or more dB can damage your hearing forever.
The cochlea is a snail-shaped organ inside the inner ear. Inside the cochlea are delicate hair cells. They receive sound vibrations when transmitted from the ear canal and past the eardrum. When the sound vibration is excessive, the cells can literally vibrate to death. When hearing is lost this way, the sound frequencies that suffer most are near 4000 cycles per second.
Sound vibrations are received in the ear, but transmitted along the auditory nerve to the brain, where they are interpreted and perceived as sound. "Auditory, or hearing cells in the brain function best when receiving sound. For instance, when people with normal hearing are placed inside a soundproof chamber, 95% develop tinnitus within 5 minutes.
Brain cells that are not receiving signals from external sound being transmitted actually become so sensitive that they listen to the electromagnetic signals of nearby brain cells. They interpret these signals as strange sounds that we describe as hissing, humming, ringing, etc. Cells are damaged by loud noise exposure cannot transmit normal signals, so this sets up the ideal situation for tinnitus to develop.
People think that the sounds are in their ears, but they're not. They are in the brain.
Many incidents can cause tinnitus; however the most common is the result or some exposure to loud noises or noises. The loud noise actually damages some delicate cells in the inner ear. This causes a loss of hearing to some degree, and the noise of tinnitus results. It's fairly common for people who work around loud noises to have such damage--called acoustic trauma. This group includes military personnel, police, industrial workers, and people who are around recreational gunfire or similar noises without adequate ear protection.
What level of noise is safe? And how is sound measured? Loudness is actually the pressure of sound waves, and is recorded as decibels (dB.)
Some examples are:
A quiet room: 30 dB
Typical conversation with a friend: 45 to 60 dB
Vacuum cleaner: 75 dB
Margarita Mixer: 85 dB
In-sink garbage grinder: 90 dB
Large truck with no muffler: 90 dB
Someone yelling: 90 dB
Electric saw: 110 dB
Noisy nightclub with live music or DJ, Rock concert: 115 dB
Shotgun blast: 150 dB
Jet aircraft, 50 meters away: 140 dB
Cannon fire, 50 ft away: 200 dB
Any sound below 80dB is safe for your ears and hearing. If you're frequently around noise greater than 85 dB, your hearing can suffer. One isolated blast of 135 to 140 or more dB can damage your hearing forever.
The cochlea is a snail-shaped organ inside the inner ear. Inside the cochlea are delicate hair cells. They receive sound vibrations when transmitted from the ear canal and past the eardrum. When the sound vibration is excessive, the cells can literally vibrate to death. When hearing is lost this way, the sound frequencies that suffer most are near 4000 cycles per second.
Sound vibrations are received in the ear, but transmitted along the auditory nerve to the brain, where they are interpreted and perceived as sound. "Auditory, or hearing cells in the brain function best when receiving sound. For instance, when people with normal hearing are placed inside a soundproof chamber, 95% develop tinnitus within 5 minutes.
Brain cells that are not receiving signals from external sound being transmitted actually become so sensitive that they listen to the electromagnetic signals of nearby brain cells. They interpret these signals as strange sounds that we describe as hissing, humming, ringing, etc. Cells are damaged by loud noise exposure cannot transmit normal signals, so this sets up the ideal situation for tinnitus to develop.
About the Author:
Visit Tinnitus to discover all that you have ever desired to understand about tinnitus. Dr Smithdeal is a former tinnitus sufferer and a board certified Otolaryngologist (retired.)
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