He is as famous for his roles as he is for his demons. In an interview with Men’s Fitness, we find out that Downey attributes Wing Chun training for overcoming drug addiction. It’s a battle he fought for years and he finally won through the practice of this martial art.
Eric Oram, his trainer, said that Wing Chun demands focus and discipline. Students cannot afford to be mentally unprepared when training because a split second of inattention can result in a painful blow. Downey began to respect the art form and cleaned up his act to get better. Now he uses his skills in high octane movies like Iron Man where he does most of the stunts himself.