How oh How to get motivated??

I have hit the big Five-O.   Well, I hit that almost 2 years ago.  I am now the big Five-1 and about to hit the big Five-2.  Just exactly when did this happen?  Tell me please!!!  And to make matters worse, I have all the symptoms that I've heard go along with mid-life.  Most notably the ever widening of my middle section.  Great, just great.  Also, the wrinkles, occasional gray hair, sore knees, shoulders that don't go as straight as I'd like..... the list goes on.  Probably worst of all though, is the lack of motivation to do anything about it.  Really, how hard would it be to take a 20 minute walk,or a 10 minute Denise Austin video?  I think someone needs to explore the topic of midlife un-motivation.  (I don't think that's a word)  Ideas for the article -- Why it's so hard to get out and get motivated or 3 simple steps to get off your butt.

On another brave note - I did get the haircut I've been mulling over for 4 months now - it's super short and no one even noticed - or else they did and thought it so atrocious as to NOT say anything! It will grow, but in the meantime I do plan to embrace it!  I do plan to embrace it, I do plan to embrace it...