This enhances the oxygen-carrying capability within the blood, making it possible for the cardiovascular technique to more effectively transportation oxygen towards the muscles, protecting against lactic acid buildup. From 1999 to 2005, Armstrong dominated the Tour de France, successful an unprecedented seven consecutive titles. His comeback story and cycling achievements https://abcnews.go.com/US/lance-armstrong-doping-investigation-widens/story?id=13663557