Mind vs Body (for want of a better title)

I remember once hearing someone say that he hates it that his body won't do what his mind wants it to do.

He was only about the same age as me actually but I still wondered what the hell he was chatting about.

Anyway tonight as I sit here in my bitter and twisted armchair, my mind wants so much to do what my body won't allow it to.

###$! When did that happen?