eli5 why does our sight and hearing go with age? and do our other senses get worse too?
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There’s cells which detect air pressure in your ear. As they get damaged you gradually lose your hearing. You first lose the ability to hear higher frequencies cells which detect those are more fragile. As it comes to eyes the muscles which change the shape of your cornea, which allows you to focus on different things, get weaker as you age. Also the cornea itself gets stiffer. I mean basically your entire body just degrades over time and the cells responsible for senses aren’t any different.
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