Wow, I don&#x27;t find running leaves me energized.  While I enjoy running (and especially long distance running), I find it leaves me drained and often depressed afterwards.  I don&#x27;t get the Runners High that so many mention, if anything I get Runners Low.<p>I generally enjoy the run and find it helps me lose weight in the long term, but I also find it saps my productivity because I feel so terrible &amp; drained afterwards.<p>[Since my post is so negative, let me add a recommendation for an iPod Shuffle or Bose QC25s while running.  I find the music helps me run 10 - 20% faster if I choose the right music, typically music by Pendulum.]