"The good news is that you can't really eat a worse (as in worse for you) breakfast." I'm not sure how this could be seen as good news xD. I could do with more eggs. Are poached or boiled any worse than scrambled?

I guess the clarification I was looking for is: why doesn't muscle-training cause the same kind of wear-and-tear that repetitive actions like driving lorries and swinging golf clubs can? But I think Darko's answer has cleared that up for me sufficiently.

Informative, and gave me all the information I wanted and then some - my favourite type of answer! Cheers :).