I just watched a very interesting sound video. It was a video from the Today Show about sound, and how easily we can lose our hearing. Sometimes we don't even know we are losing our hearing. Remember Sound travels into waves and you can measure sound based on the size and speed of the waves.
I found it pretty interesting from the video how hearing aids have changed. A relative of mine had one you could easily see, but the video showed a bunch of near invisible hearing aids. I do wonder though, what hearing aids are most effective? Or does it not make much of a difference?
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