I read a piece from the New York Times today about a condition I saw dressed up Hollywood style on Greys Anatomy ... it was even more interesting and bizarre in this factually reported article than the histrionics of Greys portrayed it to be.
So basically when you get older the skelington of the human body is designed to get a little more brittle as the bone degradates. Its something that is not ideal when you take into account that the skelington has as one of its major attributes a guarding role - that of the nervous system. The constant grinning you sometimes see etched onto an old timers face is probably actually a painful grimace or perhaps it is an ironic smile at how all those years of taking the body for granted have come back in the form of almost unmanageable pain for many, as nerves are less and less protected by that 206 part skelington that used to serve them so well.
That condition I was talking about earlier is called fibrodysplasia (you would be displeased too when you see what it does to your fibres) and works in the opposite direction as Osteoporosis. Yup ... instead of your bones becoming brittle, you grow more bones from all sorts of causes - like doing damage to one of your existing bones or even cuts and bruises. Eventually your whole body is full of extra bone which is just not compatible with the way the rest of the organs and bodies systems work and you die.
Don't worry dude, waking up in the morning a little stiff (and no I don't mean that bone) is not the first sign of this condition showing itself (although it does mean you should probably not have scrummed your buddies for a couple of hours at that bachelors party until you all fell into the fire that was at first a good idea to be next to as it was providing the only light source). Bony growths that appear all over your body could be suggesting you are one of the unfortunate ones though and if that's the case then ... yea I am going to say it .... hard luck.
This article (see link below) explains it all in a well written manner as apposed to my garble. What was most interesting to me about the whole piece though was not even when the guy grows a second skelington, but rather the close connection that our skelingtons have with the other organs in our body. Lovely stuff.