kyle turley, mike james. they felt they needed the opioids just to be able to do their job. >> your production is how you get paid. and you can't produce, you know, without playing on the field. >> opioids they were told by doctors were the best way to keep going. >> i got in to pain medicine at a time when we didn't have very good treatments for pain. >> dr. mark wallace is the director of the center for pain medicine at the university of california san diego. he like most of us doctors was taught in medical school to prescribe opioids. >> we were told, well, there's evidence that the use of opiates are probably not that risky and that we should use them more liberally. >> they don't wear off. >> it was the 1990s and doctors were seeing a lot of commercials like this one. >> these drugs which i repeat are our best, strongest pain medications should be used much more than they are for patients in pain. >> problem is, while they were fda approved for some kinds of pain, they were never intended to be used long