dr. bailes' work revolves around his being a mentor to neurosurgeons-in-training. >> dr.o over the forms. we'll sign everything so we'll be done. >> dr. cara sedney is a third-year neurosurgical resident -- one of six residents in the program. >> she's a marvelous physician and is going to be a great neurosurgeon. and we need more women neurosurgeons. and she's going to be one of the best. >> getting bad news about something that's like a brain problem is way scarier than having a broken leg or something like that. because your brain really controls the basic functions that makes us people and makes us us. the patients are really special, they're really, like, vulnerable. and just have something like that happen, but we can fix it, and that's kind of nice. >> you just have to get through this part and this is the worst part. >> god, i'm scared to do anything. >> it's not by yourself. >> it's the moment of truth. she will go forward. but after it's over, just what will she remember? ♪ [ inhales deeply ] ♪ ♪ [ female announcer ] lighting a glade scented candle can change yo

dr. julian bails says concussions can change forever the way the brain works. >> i'm of the opinion more and more that a concussion is not necessarily hitting your head, it's the movement of the brain inside the skull, which causes the tearing of the fibers. >> reporter: a hard hit can cause the rough edges inside the front of the skull to tear at the brain's fibers. and doctors believe that can lead to headaches, difficulty concentrating, balance and vision problems and even depression and suicide. dr. stanley hearing heads the nfl's head, neck and spine committee. >> if there is a suspicion of a concussion, stop player practice and don't return until you have medical clearance. >> reporter: that's the law in ten states already. now congress is considering a national law to protect players from the dangers of concussions. tom costello, nbc news, washington. >>> here in new york city today at a meeting of world leaders at the u.n., the united states, along with britain, france and five other countries, got up and walked out of the general assembly chamber over remarks made by the preside

dr. julian bails. what have we discovered?n what this is, doctor. >> this is inserting electrodes deep in the brain in the part that controls our appetite. our neuro surgeons have spearheaded this fda approved study to see if this possibly would have some benefit for patients with morbid obesity. the most severe forms. the one where their life expectancy will be affected. >> larry: how does it work? >> electrodes are placed on both sides of the brain. one into the part that makes you feel full and the other part is the appetite center where your drive to eat is. a pacemaker generator is inserted under the skin and we change settings and try to see if we can affect the appetite drive these patients have. >> larry: what have you learn sod falearned so far? >> the procedure can be done safely. we don't think we're having side effects and we can affect the urge to eat and decrease the urge. we're looking at it being well tolerated. the jury is still out. we don't have all of the results yet. we're working to refine the settings to

bail. >> the doctor who was injured last week when a gunman opened fire is doing well. dr. kohn is doing well after being shot in the abdomen when paul got upset about what dr. cohen was telling him about the condition of his mother. he shot cohen then his mother then himself. >> 23-year-old brent rosinburg was struck by a car while crossing the pacific coast highway in california. he graduated from gillman in 2005. he moved to california two months ago for a job in fine nance. rosinburg stopped in the median of the highway but was hit as he stepped out further into traffic. he played soccer and lacrosse and graduated at wake forest university. >> in project economy, the recession is declared over, saying it ended in june of last year. after the economy stays shaky. it is the longest recession since the great depression. many americans may disagree with the news but they say the unemployment rate has dropped since the recession ended last year. with news president obama spoke to the nation monday in a town hall meeting responsered by cnbc. trying to drum up votes. the presi

18 points. >>> raurn charged sarah shourd with espionage and demanded $500,000 bail. >>> a multi state hunt going on to drlio luna of phoenix, arizona, he's a pediatrician sus spektsed of distributing child important. he was under house arrest but cut off a ankle bracelet and took off. >>> today's electn will set the tone of how angry voters are before the midterm elections. >> how about a view from above. this is what hurricane igor looks like from space as the category 4 storm swirls around in the atlantic. it is expected to weaken and is more of a potential throat bermuda than the u.s. is that right? >> if that. if we can get it to miss bermuda, it's the perfect storm because we can admire it from outer space and have it be a fish storm. that shot from the international space station, which flies pretty low. this shot from our brand new ghost imagery satellite, this is way up there. pretty hard tech, just launched in the spring. not only is it high resolution from that altitude, they can rapid scan these. they did it yesterday afternoon when the sun was up at about a one-minute interval. that's a quick

dr. anthony jones, gregory miller and david greenberg. they pleaded not guilty in court yesterday. and the judge let them go. bailthe equivalent of about $200 u.s. but the four also had to relinquish their passports. >>> president bush's is trying to inspire students as classes glynn for the new school year. yesterday, he spoke at a conference of black colleges and universities in washington. today he will speak to a younger crowd in philadelphia. the white house released a transcript of the speech which will urge kids to work hard and stay focused >>> some researchers say they know where the oil is from the massive gulf of mexico leak. university of georgia scientist say they found a lot of the oil lying on the gulf floor. a mile down and 80 miles from the site of the leak which was caused by an explosion in april. a research vessel found a blanked about 2" thick of oil under a layer of dead marine life. >>> investigators in colorado believe humans caused two wildfires that destroyed dozens of homes. but they are not sure if they will fire charges. a fire destroyed more than 160 homes. investigators believe it w

bail, so she can continue to zapf professional medical help. robin? >> mike. >>> we're topped by one of america's top forensic scientists. dr. michael wilner.g, michael. she says she wanted to kill herself. you're not buying it. >> well, this acid is a high lethality vehicle. if she wanted to kill herself, she could have drank a small quantity and clearly, she would have killed herself. the fact she covered her eyes, she was planning for tomorrow. and a person with a suicidal motivation doesn't plan for functioning beyond the self-inflicted wounds. while she may say she was suicidal, i don't think the evidence supports it. >> she recently went through a divorce. is it looking for attention for people within your own life? >> robin, here's where it gets tricky. we have to ask ourselves, taking a step back from what seems to be obvious. was she intending to self-mutilate? we know if she thought she was ugly and she was so committed to the idea of cosmetic surgery and reinstruction, that she would apply acid to her face. we know she had body exmorph ya. if she would go to the end of mutilating herself, it's that extreme. her thinking is that d

bail and was released from jail. police do say nobody was seriously hurt in that fight. maggie? >> jeff, thank you very much. psychologist drs now a contributor to healthguru.com. good morning. >> good morning. >> she facing five years in prison n. your view was her behavior criminal. >> criminal, atrocious, absolutely stupid and i think at this point she realizes what she did was wrong, she got caught up in the moment. good parenting does not dictate you egg your child on. you work with your child and teach them conflict resolution skills and, i have to point out, she was afraid her daughter might get hurt in the back of the head because she had a previous head injury and, as we can see, she's been hit with rapid punches in the back of the head several times so this is absolutely horrific. >> not only did she get caught up in the moment we see her walking with her daughter to the fight so it appears she knew about it beforehand and didn't try to stop it. where's the parenting here? >> it seems like a lot of people knew about it, as you see surrounded by folks, they posted this thing on youtube, of course. the parenting was

bail until a hearing on october 22nd. the judge revoked her probation this week and signed a warrant for her arrest. she has admitted failing a drug test during her probation. >>> all week long, drtroduced us to a girl with tremors and a mom whose muscled are growing out of control. now, he tells us if they have solved either of these baffling medical mysteries. >> no one could explain what was happening to sally. at 53, her muscles had groan grotesquely large. >> it became increasingly difficult just to walk. at some point, i knew if it konds, it would kill me. >> steroids were ruled out, so no explanation, no diagnosis. that was why she was accepted into the program. dr. william gall runs the program. for a lot of patients, i really got the sense of this is a place of hope or last resort for them. that's a lot of pressure. >> it is. we try to be realistic about it and get our patients to be realistic about the issues, too. they've been to the best places in the country. now, you're coming here. we only have a 10 to 15% success rate, so i don't want you to get your hopes up too high, but on the other hand, we don't want to take all hope away. >> for one week, the medical expert