Lance Armstrong is an American former professional cyclist who won the Tour de France seven consecutive times from 1999-2005. However, he was later stripped of all his titles after being found guilty of doping. The document provides details about Armstrong's personal information and cycling career highlights. It also describes how in 1996 at age 25, Armstrong was diagnosed with advanced testicular cancer that had spread to his lungs, abdomen, and brain. He underwent surgery and chemotherapy to successfully fight the cancer, though he had a less than 40% chance of survival initially.