Testosterone Scenarios in Athletics
Landis Interview
Awaiting Test Results, Landis Fears for Reputation July 28, 2006
Banned Drugs
Robert Siegel talks to Dr. Gary Wadler, a member of the World Anti-Doping Agency's Prohibited List and Methods Committee.
In light of the doping allegations leveled against Tour de France winner Floyd Landis, Wadler explains the role testosterone and epitestosterone play in sports.
There are several different possible explanations, Wadler says, for elevated levels of the substances in an athlete's blood.
Related NPR Stories
Landis Doping Allegations Give Cycling Black Eye July 28, 2006
Tour Champ Landis Failed Doping Test in Comeback July 27, 2006

Comments
Discussions for this story are now closed. Please see the Community FAQ for more information.