as a young child, joe dreamt of being an olympic gymnast, but by high school, being perfect turned him. >> the gates of heaven opened up. this was my religion. i knew -- this was going to sofl all my problems. >> reporter: by the time he entered college, he was out of control. >> i was drinking and using prescription drugs and a lot of cocaine. >> reporter: and soon enough, heroin. joe wrote about his struggles in a memoir. it's a book worth reading. he joins us now. thank you. how are you doing? we have talked several times over the past couple years. how are you feeling? >> good actually. >> you're back to your training routines and all of that. you shared with me the first time we spoke just how many substances have been a part of your life. you have been addicted to many substances, but it was heroin in