Training Series (Year 4)
is at the heart of the quality of life. To lose the ability to hear through
abuse is unnecessary!!!!!
1. What are the major causes of noise induced hearing loss?
Loud music and gunfire. Knowing this, you can
realize the importance of taking this program home with you. Please consider the
types of recreational noises you are exposed to and protect yourself.
will I know if the noise I am exposed to is hazardous to my hearing?
Here are two rules of thumb; Anytime background noise keeps you from
understanding normal conversation from three feet away or your ears ring after
leaving a noisy environment.
does loud noise cause irreversible damage?
Loud noises aggravate thousands of tiny hair cells in the inner ear,
much like hitting your thumb with a framing hammer. The first time, with a
recovery period your thumb will likely heal. However, continuous mishaps with
that hammer and your thumb will become a nub! The same is true with the hair
cells, loud noises without protection will eventually cause them to die,
reducing your ability to hear.
4. If I
start to lose my hearing will I notice it right away?
Probably not, it happens gradually and in the higher frequencies. By
the time you notice it, permanent damage has already occurred.
there any other effects of loud noises other than with my hearing?
Some other effects that can be associated with loud noises are 1.
Antisocial behavior, 2. Stress, 3. Fatigue, and 4. High
blood pressure. These effects of noise are mediated by the auditory system,
meaning you must hear the noise for the adverse effects to occur. Properly
fitted hearing protection will reduce the possibility of these effects just the
way it does with hearing loss.
6. If I
am required to wear hearing protection, what is the best type for me to wear?
HPDs come as earplugs, semi-aural devices or earmuffs. Each type has its own noise reduction rating (NRR). The NRR is how much noise those protectors will effectively attenuate when worn properly.