Legend - Children who wet the bed are lazy.
Truth - Bed wetting has nothing to do with being lazy and not wanting to get up. An involuntary problem, This is caused when a child's bladder control is slow to mature. Often times, chronic bed wetters are very deep sleepers and will not wake up to use the bathroom when their brain re... Read more
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When people start having problems with their hearing, they usually turn to hearing aids for them to hear better. The old days featured what looked like 'ear horns' or funnel shaped devices that amplified sounds whenever people needed to listen to something. It was unwieldy but effective.
Of course, the evolution of technology made it possible for the extinction of the atrocious-looking device. Now, hearing aids are commonly electronic devices that are worn on the ear like the conventional ear phone. The first design of these had a rectangular battery pack that connected to the ear piece with a lengthy wire. The battery pack was usually placed in the user's pocket. This design tended to be flawed, as the microphone used to amplify sounds wasn't placed very strategically, often suffering disturbances from the user's clothing. During the mid 20th century, they came up with hearing aids that had a small battery inside the actual earpiece. Interestingly there are several types of hearing aids that differ in size and power. There are those that are worn on the body as mentioned earlier and then there are behind the ear (BTE) hearing aids, which are put into place with a specially made ear mold. This comes in several colors and allows the user to use their natural healing. The next type is the in the ear (ITE) hearing aid. These are also custom made to fit the user's ear. Modern models of the ITEs have the ability to regulate and cancel feedback, a loud, screeching sound caused by sound leaking out and being amplified again. There are also in the canal (ITC), mid canal (MIC) and completely in the canal (CIC) types of hearing aids. ITC aids only fill the bottom half of the external ear. MIC and CIC are smaller and usually not visible. They are advised for mild to moderately severe hearing problems. Bone anchored hearing aids (BAHA) are aids that are surgically implanted devices that use bones as pathways of sound. In the 50s, there were devices that were catered for those who had problems with both hearing and seeing. They were called eyeglass aids, devices that combined both hearing aids and spectacles. The hearing aids were put in the temple part of the glasses. The problem with the design was that there wasn't a wide range of choices for frames, and one had to wear both the glasses and the hearing aids at the same time, or not at all.
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