at the uniformed services university of the health sciences in bethesda, maryland, dr. andy baum is studying post-traumatic stress disorder in veterans. [dr. baum] we bring vietnam veterans and various control group subjects into our laboratory, and we ask them to watch a film which most people would consider stressful, but which combat veterans may find more stressful because it's a film of combat surgery. we measure their blood pressure and their heart rate before, while, and after they view the film to see how reactive they are to that kind of stressful, relevant stimulus. please work rapidly. we ask them questions about how they feel, whether they are experiencing symptoms of somatic problems-- headaches, backaches, pains-- whether they're depressed or anxious, and whether there are certain kinds of situations that seem to make them feel that way. i think the thing we're most interested in and the thing i most want to understand is how these acute events become such long-term albatrosses for people and why it is, while most people can deal with these thgs, why it is

new study says that doctors at the uniform services university in maryland says early warning signs include seeing flashing lights. the wink may be associated with dysfunction in one of the brain's messengers but researchers say the the risk is quite low and migraine sufferers should not ab alarm. scientists say if further research confirms the the link then migraines could be included as one of the many warning symptoms used to identify people at a high risk of developing parkinson's. >>> a new study may explain why some of us struggle at math more than others. i'm one of them. researchers link a woman's harmone levels in pregnancy to her child's built to do simple arithmetic. scientists say boys and girls whose mothers had low levels of the harmone, are twice as likely to have poor math skills. >> you about this, 5:19, a little girl fighting cerebral palsy says she's a target of bullies but now she's using a taylor swift song to fight back and inspire others. thinks 18 year-old dana, she was born with cerebral palsy. she says that he has been a target of target of shake it off, inspire th

doctors at the uniform services -- university of bethesda maryland say early warning signings includeflashing lights, the link may be associated with a dysfunction in one of the brain's messengers but researchers say the risk is still low and migraine sufferers should not be alarmed. scientists say if further research confirms this link, then migraine could be included as one of the many early warnings symptoms used to identify people at high risk of developing the disease. >> in you mothers say they feel discouraged from breast feeding because of what they feel is a stigma. british study women complained about being stared at, negative comments and feeling sigma tied in they chose to breast feed their children for more than a year. others even say the health community does not support them enough when they're learning to nurse. this is not in the united states. this is a british study. it's in the journal of maternal and child nutrition. >> all right, doug lovers look at your four legged best friend and feel i am positive there is intelligence in those eyes. new clues just how smart

universe -- uniform division. >> i realize my time is gone. i do think that congress has to take some responsibility for the sequester, when across the board, including police agencies like the secret service. thank you. >> recognize the gentleman from south carolina. >> director, i am a fan of law enforcement. i don't take any delight in asking the questions i'm going to ask you. law enforcement are given unique powers, and and with that response ability. i can think of any resort to believe greater than guarding our president and his family. several agents thought there was shots fired, a supervisor concluded it was a vehicle backfiring. even if that were true, even given the very small investment of resources, when i investigate shots fired? representative, i think that is where some of the confusion starts to come out of the story is in the washington post. >> i'm not asking you about a washington post or, i'm asking you about why a housekeeper, who doesn't spend 14 weeks in training, who doesn't have 18 weeks of training thereafter, found glass, and your agents did not. they didn't come from the washington post. is that true? did a housekeeper find evidence of the shooting, and your a