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Frequency hearing drop
post Sep 11 2012, 02:39
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"Hello doctors/experts,"

I read that the ability to hear high frequency sounds drops with time and age and I am aware that we have a range and I also saw graphs and documents about it.

My concern is about how the drop appears, does it change from where one lives? How much and how fast can the time/age drop? Does it depend to humidity? Weather (too cold, too warm)? Altitude? Bad habits (alcohol/beer, whisky etc., smoking/cigars etc.)? Most important, fatigue/not to much sleep (and probably still related to the weather being too warm)?

I am 30, can it be temporary and go back up during winter?

It's not a matter of life and death, I actually don't really care, the music is still good to me and if age does this it's ok but I was able to hear up to 17Khz let's say 5-6 months ago and now only up to 13Khz. Here in Phoenix 5-6 months ago was cooler than this very hot summer that's why I'm asking about the weather possibility. I've been in Arizona 6 years but I am not from here, I am from a small mountain town from the center-north of Italy, I have no idea what the desert can do to a person.

If anyone can answer, thanks.

This post has been edited by eahm: Sep 11 2012, 03:06
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post Nov 15 2012, 09:01
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This is a very important topic to us. Rarely I stop and post something. I won't cite things but I spend hours a day studying and working with preventative medicine and regeneration. Mind you my focus hasn't been ear health so far, so I'll only drum up some leads. I hope someone with a real bio background explains more as this whole realm of auditory enjoyment is diminished if our hearing doesn't stay top notch. I strongly believe hearing can be restored after having been damaged, and hearing damage can be avoided.

As I understand, hearing loss is related not to the initial exposure to the sound, but to imperfect healing of shocked tissues. In general, lasting damage and dysfunction (e.g. scarring) in living tissue is caused by an excessive inflammatory response, which signals and triggers/supports rapid healing. With something like the cochlea, one does not need rapid healing, such as with a bleeding cut or wound, the type of damage our body has evolved to deal with, but slow, careful, perfect reconstruction of the tissue. Inflammatory immune response is damaging to surrounding tissues - where physical healing happens, for example, some processes typical to external skin wounds happen as well. If you cut yourself, while the wound heals, white blood cells rush to the wound as well, and release peroxides and other chemically harsh products which, while controlling a major problem like potential infection, damage surrounding tissue slightly. This concept is expressed greatly in digestive allergy. An individual with a soy allergy, who eats a meal of soy, has the immune response to the food (within the intestine) triggered. Immune system cells move to the intestine, and metaphorically attack the food as if it was a horrible invading bacterium. As a result, the intestinal wall gets damaged and worn out, leading to malabsorption of nutrients.

From nih.gov:

"Scientists believe that, depending on the type of noise, the pure force of vibrations from the noise can cause hearing loss. Recent studies also show that exposure to harmful noise levels triggers the formation of molecules inside the ear that damage hair cells and result in NIHL." The molecules formed are from the immune system reacting to physical force exerted on tissue, in response to what the brute, mechanical system understands was the equivalent of a cut or scratch you just received from a dirty rock outside.

How does one lower inflammatory response? Well, inflammatory response is mediated very strongly by the quantity of phytochemicals ingested. To put it plainly, getting your fruits and vegetables reduces the severity of the inflammatory response to damage anywhere in the body. Inflammation isn't a "there or not" thing, it is constantly active at a low level everywhere, in most tissues, and actually contributes strongly to aging, and mental degeneration.

I don't know how related this is specifically, but there is a product on the market containing flavinoids (a big category of plant chemicals) that shows amazing results for treating Meniere's disease, which is characterized by nausea and low-pitched ear-ringing (tinnitus) as well as inflammation-associated hearing loss. Patients taking one formulation called "Lipo-Flavinoid" containing citrus ingredients improved hearing in 40% of patients, and this is hypothesized to be because of anti-histaminergic effects (histamine triggers and signals the inflammatory response). Therefore the suggestion to try an anti-histamine was a good one; it has two-fold action - clearing the various sinuses and tunnels within the ear, and reducing the constant, low-grade inflammation in the ear.

Diet alone can shift the strength of your inflammatory response way over - for example, olive oil itself is anti-inflammatory. But the most important thing here is to realize that allergenic response to food is also not black-and-white. Foods considered commonly "allergenic" such as peanuts, soy, milk, wheat are in fact allergenic across the board. The variation in strength of inflammatory reaction, and perception of this reaction is what makes one's diagnosis severe or not. When meat is cooked (protein subjected to heat) pro-inflammatory compounds called beta-carbolines form. When a human eats cooked meat, across the board it is found that there is an immune response to the stomach contents - white blood cells are seen to literally rush and conglomerate in the stomach area in a scan. Raw or unburnt meat does not provoke such a strong response, despite actually having a small amount of unsavory organisms present. This means that having casein (dairy), gluten (wheat), many artificial chemicals (food additives, or products of food refinement/processing) shifts the body's general inflammation level up, making it harder for tissues to heal nicely, and causing low level damage throughout all tissues.

"You are what you eat" is completely true. There is no part of you made of anything except for what you've put into your mouth and lungs and on your skin (often overlooked). As your ears repair after exposure to noise, they use what you just ate to rebuild.

Now, in the case of regeneration, it's a little harder to speak for sure as a lot of it is still within research and hypothetical stages. Some have said that any tissue rebuilds given some conditions:

One is that any damage holding back the regeneration (which is usually very very slow) stops, which means completely eliminating inflammation. This means cutting things that contribute to the general state of low grade inflammation. Find your specifics; an easy way is to notice which meals make you tired. Find the common element (bread, dairy, eggs) and cut that one out. You are intolerant to the food if it makes you excessively tired after eating it. A big contributor to inflammation is a bad fatty acid ratio. More omega-3's are needed in the average diet and the quantity of inflammatory omega-6 fatty acids needs to be cut tenfold. w-6 fat (prevalent in common vegetable oil) literally converts into inflammation-promoting hormones in metabolism. w-3 are present in fish products. Cod liver oil is an incredible substance and contains some interesting anti-inflammatory compounds.

The next is to provide to the body the nutrients required to rebuild the issue, which means high quality protein (not what people generally think) and all necessary vitamins, minerals and co-factors to signal and allow the healing. After having exposure to a loud sound, as the damage to the hairs in the ear is fixed, the material it is rebuilt and reshaped from changes whether scar tissue is present, or material identical to the original. A measure known as protein quality describes the digestibility, and usability of ingested protein for the body. Fruits and veggies have better protein than meat, despite having much less of it. Note that the tallest, most muscular animals are herbivores.

So, my somewhat unexactlysubstantiated prescription for hearing loss and prevention:

Identify and cut out specifically allergenic foods, and avoid ones generally allergenic (like starchy fries soaked in w-6 predominant oil)
Get your plants.
Eat more plants.
Eat your plants.
Eat good proteins like fish, nuts..
^^ This dietary approach biologically considered the best source of nutrients, while contributing the smallest amount of inflammation possible and mediating actual damage-triggered inflammation in a good way is known as the "paleolithic" diet.
De-stress as this can shoot inflammatory response to a normal trigger (such as a loud noise) through the roof.
Focus, mentally, on the ears, while doing all of this. While falling asleep, meditating, etc. Focus on your ears and brain and nerves which carry all the information, mentally ask and direct the nutrients and attention and love to them. Don't ask me, but there's enough evidence of cancer being healed or made worse by the attitude of the patient. This is trotting onto the grounds of spirituality and energy which while unproven scientifically, has a ton of anecdotal evidence. It has been shown that focusing on an area of the body increases blood flow to that area. (ha, ha.)

All this is general health advice. I found it funny as I write something specific to ears, all details apart from ear-specific nutrients and phytochemicals apply to healing almost everything. Look at joint health - doctors may prescribe forceful anti-inflammatory medicines and pain killers for joint health, while a food-based treatment, a combination of the substances glucosamine and chondroitin, have shown exceptional results in treating and rebuilding joints. These two things are what cartilage and joint material are made of. You are what you eat.

I've gone far off course but if it helps even one person it was worth it.

A side discussion: The few times I've drank at concerts, I left with much ringier ears than ever. It is the liquid-thinning effect, making the sensory hairs softer? The music wasn't louder than any other shows. Only alcohol ever caused this.

This post has been edited by m00k0w: Nov 15 2012, 09:14
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Posts in this topic
- eahm   Frequency hearing drop   Sep 11 2012, 02:39
- - mzil   http://www.speechandhearing.ca/files/noise...ring%...   Sep 11 2012, 03:23
- - eahm   This is why I can't explain the amount of drop...   Sep 11 2012, 03:50
- - mzil   I've added to my previous post, so you may wan...   Sep 11 2012, 04:07
- - eahm   ...1 year ago we moved and the air conditioning is...   Sep 11 2012, 04:18
- - greynol   Congestion can cause temporary hearing impairment....   Sep 11 2012, 04:26
- - eahm   Thank greynol, I'll look into that as well...   Sep 11 2012, 05:11
- - greynol   You might find that you are allergic to the region...   Sep 11 2012, 05:35
- - AndyH-ha   I suspect that any self respecting professional is...   Sep 11 2012, 06:29
- - yourlord   I realized my hearing loss recently as well. Throu...   Sep 11 2012, 16:49
- - eahm   I will get my ears professionally tested, what I s...   Sep 11 2012, 17:53
- - mjb2006   I could be wrong, so correct me if I am, but I am ...   Sep 11 2012, 18:37
|- - probedb   QUOTE (mjb2006 @ Sep 11 2012, 18:37) I co...   Sep 12 2012, 08:04
- - pdq   Nonetheless, if the loss of high frequency hearing...   Sep 11 2012, 18:39
- - smok3   QUOTE (mjb2006 @ Sep 11 2012, 19:37) I co...   Sep 11 2012, 19:05
- - slks   I have heard of loud noise from driving causing he...   Sep 12 2012, 08:40
- - IgorC   QUOTE (eahm @ Sep 10 2012, 23:39) It...   Sep 13 2012, 04:58
- - m00k0w   This is a very important topic to us. Rarely I sto...   Nov 15 2012, 09:01
- - DonP   I've seen reports from surfers and whitewater ...   Nov 15 2012, 14:11
- - Mach-X   The funny part is your brain/ears continually adju...   Jan 14 2013, 07:55
- - eahm   That's in fact what I am thinking, my hearing ...   Jan 14 2013, 08:08

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