I read something this morning, an inspirational quote on the website of a local Quantified Self gym, which was trying to tie fitness to work/life balance:

Life is crazy. We all know it. Juggling several things all at the same time. I’m proving that no matter what is happening in my life, my fitness gives me the physical and mental balance to take everything in stride — and enjoy it!

I know; that’s nuts; fitting in fitness does more to clobber your work-life balance than almost anything, especially when you get to be my age and the jogging, stretching, resting, flexing, flossing, just pile up to an unholy percentage of each day.

But there was something to it as well: feeling fit makes you feel better, which makes you feel more equal to things.  It fuels your chutzpah.