Not enough motivation to exercise?

I think being 52 years old and running three and a half miles in just under 29 minutes is okay... an 8.50 mile isn't bad in one mile and it's pretty okay too at near 3.5 miles.  No it's not the half marathon I ran a few years back or the near 16 miles just prior ... but it is exercise!  Exercise, nutrition, fluid intake, self nurturing, time with loved ones, decent sleep ... these are all key parts of mental health.  Motivation?  It's not a psychological phenomenon to search for ... it's dopamine.  Do you know what activates dopamine (aka: motivation)? Exercise!  If you're missing motivation,  besides a symptom of mental illness, besides a symptom of unhappiness, besides "just not feeling like it" check to see if you are also not missing exercise time.  It clears inflammation, reduces self medication behavior AND produces motivation! #mentalhealth