it s science. ron burgundy is right and he s wrong. women s brains aren t that much that proportioned smaller. women s brains, however, according to science, are smaller. they ve used mri s at the university of pennsylvania. what they figured out is that women s brains may be smaller, but they re more efficient. look at that. 8% smaller. good at thinking. i can keep track of a changing situation. yes, you can. and women handle stress by defriending. let s talk about it. look into my in my eyes. we like to run away. your brain is not efficient. it s bigger. it s bigger. that allows to us drink more. we understand space and landscapes better. how many times are we able to look at a rows of crops and know exactly how far it goes. the rows of crops? yeah.
you have your direct impact. you got to remember, the brain is floating in water. so there is the direct hit and then actually the brain will ricochet and be forced on the opposite side will hit the brain. so the brain is literally bouncing against the skull. elisabeth: you receive the hit, it ricochets. then depending on the strength of the hit, what happens then? a lot of things can happen. a concussion can be very mild. it can be quite severe where there is injury to the blood vessels and there is bleeding. more swelling could take place. you can have swelling that takes place. you have to remember the brain is in a limited space. so if there is swelling, there is very little room for that to be accommodated. direct injury and also the secondary effects of a concussion. elisabeth: so you also want to show us a normal brain versus a concussion brain so we can get an idea of what happens. in this particular study, which is done with special mri s, you can see the deep struct
dr. marc siegel. back pain, a big deal to me. you ve helped me out before in the past. let s get through myths and facts. first off, back pain usually goes away on its own. fact or myth? absolutely true. people don t realize that. by the way, as we were saying, what back pain is is because there s a tight compartment of muscle, nerve and bone in one area. nerves get inflamed and you get back pain. you get a muscle spasm and you think it s going to last forever but most of the time it goes away on its own. brian: the guidelines are always right? myth. guidelines for back pain say we overdo the treatment, that we overdo the m.r.i. s, we overdo the steroids, narcotics and surgeries. that s true but guidelines in general i don t believe is good medicine. guidelines should be taking place of by the art of
like physicians we will huddle often like they would to happenedle the case? and look at the chars and look at mri s. we ll do that, too and for often it is an occasion of personal faith. sometimes we ll say i don t know what to say . help me out here. i find solace sometimesine in consulting with clergy of other faiths and talk to rabbies how are you hanle gretchen: our presbyterian church service my minister said he was inlectual vacant we did the silence and we light a candle for each victim and said prayers and sometimes, saying nothing and just remembering is what you are saying. when we say as a nation say, i don t know what to say, that in itself is a statement and a profound act of faith.
million have people. 170 billion. and the answer to your question, if you look at the last two decades we ve gone from understanding that this is a reality, to really understanding on the imaging that there are on mri s and cat scans, there are lesions on the white matter on the brain that could cause this, we had a segment not too long ago we talked about beta amyloid, plaques that kind of block the formation to go from one side of the brain to another one and they freeze their talking and thinking and all of a sudden they forget. so we ve come a long way and now we re coming closer and closer to the secrets and decoding the the genes. what they re finding out british scientists, after looking at over 2000 patients and looking at their genes, they ve come up with a new finding called tren 2, tren 2 is the new gene that a lot of patients with alzheimer s has it. it s interesting, as we think and as we get older, there s a lot of debris around our brain just like anything else. there ar