Did You HEAR- Facts

  1. Hearing loss is the third most common major public health issue after arthritis and heart disease.
  2. Sometimes, if there damage to the ear, perception of taste may be off because nerves (called the Chorda Tympani) run through the ear and connect the taste buds on the front of the tongue to the brain. Sometimes people who have had ear surgery experience a change in their sense of taste.
  3. Although some of us may consider ear wax a nuisance, it actually protects our ears by lubricating them and cleaning out dirt and dust. Ear wax will normally come out on its own so it’s not a good idea to clean it yourself. .It has also been useful to anthropologists for studying mankind’s early migratory patterns.
  4. Did you know that ears also serve another important function? Balance. That’s right, the inner ear is composed of two organs. The cochlea, which is responsible for hearing, and three semicircular canals, which are responsible for balance. These organs play an important role in preventing you from getting dizzy when you move your head.
  5. Not all living creatures hear with ears. Snakes use jawbones, fish respond to pressure changes, and male mosquitoes use antennae.
  6. Older adults with unmanaged hearing loss are at an increased risk of cognitive decline and developing Alzheimer’s disease and other forms of dementia. However, there is encouraging evidence that hearing assistance, such as a hearing aid, can improve the lives of even those with significant dementia.
  7. Your ear drum is smaller than 10mm in width and it moves less than a billionth of an inch while hearing.
  1. Sensory neural loss is related to a person’s genes.
  2. Noise-induced hearing loss is cumulative, invisible, and permanent. It’s cumulative because the damage can start when we are young and get worse over time. It’s invisible because it can happen without our even noticing it, until it’s too late. And it’s permanent because, unlike a broken arm that gets better over time, we can’t “heal” our hearing. Once it’s damaged, it’s damaged for good.
  3. The malleus, incus and stapes (otherwise known as the hammer, anvil and stirrup) are the smallest bones in the human body and are full sized at birth.
  4. The ear never stops working, even when people are asleep. The ear continues to hear sounds, but the brain shuts them out.
  5. At birth, the human ear can hear sounds as low as 20 Hertz (lower than the lowest note on a piano) and as high as 20,000 Hertz (higher than the highest note on a piccolo).
  6. Sitting in front of the speakers at a rock concert can expose a person to 120 dB, which will begin to damage hearing in only seven and a half minutes.
  7. Two out of three babies will have an ear infection before age 1.