When people tell me that the human body is a well designed machine I laugh in their face.
Think about it; the back curves in all the wrong way, if you lift something the wrong way it can displace your back causing years of pain. The optic nerve in the eye is on the wrong side, you have to constantly shift your eyes in order to see around the blind spot. Your immune system can turn on you at the drop of a hat, your hearing can be lost by even the slightest exposure to loud noise, there are one too many teeth in your jaw and your kidneys are incredibly vulnerable at the bottom of your torso.
All in all, I tell them, the human body is a hodgepodge of patched together systems some of which look more like they have been added as an afterthought. It works, most of the time, but not all of the time, not in the life we live.
You just have to laugh at it all. Either that or go slowly mad. It seems to the the sensible thing to do.
Written for the light and shade challenge for the 21st of January 2015