And to add to the confusion, you have another study considering the opposite conclusion.  The study explored the effects of exercise increasing free radicals and advanced aging.<p><a href="http:&#x2F;&#x2F;www.ncbi.nlm.nih.gov&#x2F;pubmed&#x2F;9177582" rel="nofollow">http:&#x2F;&#x2F;www.ncbi.nlm.nih.gov&#x2F;pubmed&#x2F;9177582</a>