Body language expert assesses Lance Armstrong as he admits to cheating

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Lance Armstrong confessed to using performance enhancing drugs and blood doping during an interview with Oprah Winfrey that aired Thursday night, saying that he "lost himself" in lies.

"You overcome the disease, you win the Tour D' France seven times, you have a happy marriage and kids -- It's just this mythic perfect story, and it just wasn't true," said Armstrong.

At the start of the interview, Winfrey asked Armstrong to answer a series of "yes or no questions," including asking if he ever used banned substances to enhance his cycling performance and if he used blood transfusions to enhance his performance.

Armstrong answered "yes" to both questions.

"The only people he had fooled were people outside of cycling," said Traci Brown, who was a teammate with Armstrong in the U.S.A. Cycling program during the early 1990's.

"He's really embarrassed," said Brown, who is now a body language expert specialized in detecting when someone is lying. "He's holding back somewhere in order to say the minimum he can say, to get himself as clear as he wants to be."

Brown told us that it appeared Armstrong has mostly told the truth during the interview, except in a portion when he denied pressuring teammates into doping. Brown says his body language made it appear as if he was being dishonest.