Yeah... Especially when one studies physiological mechanisms in depth, you come to realise that the body
is truly amazing, but then also this:
View attachment 35148
...
I'm not even sure... I mean, as far as I know, our hearing was/is indispensable to our survival. Many many years ago, it was necessary to hunt and to protect ourselves from predators. Nowadays, our hearing protects us from moving cars and whatnot.
What surprised me the most about the human body, though, is the fact that two vital organs/tissues cannot properly regenerate: the human heart, and the (central) nervous system. So basically, when people suffer a heart attack, heart muscle cells simply die and are subsequently replaced with scar tissue - essentially losing a part of its functionality. In contrast, our peripheral nerves have limited regeneration capacity, and, fortunately, our brains are really plastic and able to adapt to changes internally and externally, but you know, one unlucky car crash may severely damage your spinal cord and you're paralysed for life! No regeneration possible whatsoever. If all nerveus tissue in the human body could properly regenerate, we would probably not need a fix for tinnitus, hyperacusis, or hearing loss (among many other illnesses). Regrettably, that's not the case. So please, science hurry up