dr. julian bails will return. we'll go back to the mines as well. don't go away. e rescue of the third miner is coming up. >>> mike roe and dr. charles sophie remain. dr. julian bails, chairman of the department of neurosurgery at the university of west virginia remains. we take you back to the scene and show it to you. as seen in chile at that san jose mine. the capsule is going down to pick up the third miner. as greg christianson, one of our key producers at cnn just said to me, it is a little mind-boggling, isn't it? mike, we'll start with you. we're all the way here. we're in los angeles. you're in san francisco. dr. bails is in west virginia. and we're seeing the scene below the earth from chile. >> yeah. i think mind-boggling is exactly the right way to put it. we're just looking around here in the control room and everybody is kind of shrugging their shoulders as if to say i can't believe we're watching this. the thing that occurred to me, i don't want to put words in anyone's mouth. i can't get over the fact that every day these guys do what they do. but i

dr. julian bales, he's a neurosurgeon at west virginia university. what have we discovered?s inserts electrodes deep in the hypothalamus, this study will see if this possibly will have some benefit for patients with morbid obesity, the ones that really their life expectancy will be affected. >> larry: does it work? >> electrodes are placed in the hypothalamus into the center that makes you feel full. the other part is your appetite center where your drive to eating is. these electrodes have contacts on them that go through these areas and a pacemaker type generator is inserted under the skin and from that we're able to change the settings and try to see if we can affect the appetite drive these patients have. >> larry: what have you learned so far? >> we have learned in the first series we have done that the procedure can be done safely, we have learned that we don't think we're having side effects and that we can affect the urge to eat, decrease the urge, we're looking at it being well tolerated. but the real -- the jury's still out where we don't have all the results yet,

dr. julian bails, neurosurgeon and chairman of the department of neurosurgery at west virginia universitye discovered? explain what this bbs is, doctor. >> well, this is inserting electrodes deep in the brain in the hypo thalamus, the part that controls our appetite. our neurosurgeons have really spearheaded this fda approved study to see if this would possibly have some benefit for patients with morebid obesity. that their life expectancy will be affected. >> larry: how does it work? >> well, it works by electrodes being placed on both sides of the brain, into the hypothalamus, one into the part that is the center that makes you feel full. the other is the appetite center where your drive to eating is. so these electrodes have contacts on them that go through these areas. and then a pacemaker type generator is inserted under the skin, and from that, we're able to change the settings, and try to see if we can affect the appetite drive these patients have. >> larry: what have you learned so far? >> well, we've learned in the first few series, the first series we've done, that the procedure

dr. julian bayles. and joining us from atlanta, is "gma" contributor, erin andrews.u have been doing a lot of phone calling overnight. talking to players, coaches, the league. how soon could we possibly see the nfl take action? >> robin, last night, espn senior analyst for the nfl, chris mortensen reported that for the monday night football game, they are expected by wednesday, to make a statement to players and to clubs. and basically, tell them that first-time offenders will be suspended for what the nfl is calling devastating hits or head shots. so, as you guys mentioned in that feature there, a very sobering weekend for the nfl. i talked to ray anderson, the executive vice president of football operations for the nfl. he said this weekend just put everything into place. from the accident with the rutgers player. with the violent hits in the nfl this weekend. and also, on sunday night football, tony dungy, a very respectable former head coach, and a former d.b., rodney harrison, saying fines aren't going to impact players. >> could it be this weekend that we're go