http://en.wikipedia.org/wiki/Stretching#Possible_Benefits More lifestyle optimization! For the past year, I have basically completely stopped stretching before I run (I run about 5 miles a day). And the reason was basically that Wikipedia article which says that I have not had any major injuries this year, so I will probably just continue the no stretching routine. But please tell me if you think that is a bad idea. Of course, Wikipedia is probably not the best source and PF probably is not much better but anyway... Since my other lifestyle optimizations have been so popular here , I thought I would share this one as well.