a few weeks ago, my friend from high school watched me do a crossfit workout where i almost vomitted.  she didn't understand why i would push myself so hard.  i told her it's because benefits far outweigh the cost. 

unfortunately, i was a bit overzealous last week and i tweaked my back which ruined me for the weekend.  my back hasn't been in this much pain for a long long time and i hope it's nothing permanent.  i'm still going to try and play volleyball today, though and i'm HOPING the benefit will outweigh the risks.  ><