Word: stressful
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...scan groups of people who are likely to be thrust into dangerous situations--fire fighters, say, or police officers. Then it may be possible to determine if any changes in their brains are the result of traumatic situations or if the changes predate them. Either is plausible. The stress of surviving a building collapse, for example, could turn a normal amygdala into an overactive one. Or an already overactive amygdala may overwhelm the brain in the wake of a disaster...
...twins, who, like any other siblings, share only some of them. What Kendler's group found was that both identical twins were somewhat more likely than both fraternal twins to suffer from generalized anxiety disorder, phobias or panic attacks. (The researchers have not yet studied twins with post-traumatic stress disorder or obsessive-compulsive disorder...
POST-TRAUMATIC STRESS DISORDER...
...STRESS-HORMONE BOOST Responding to signals from the hypothalamus and pituitary gland, the adrenal glands pump out high levels of the stress hormone cortisol. Too much cortisol shortcircuits the cells in the hippocampus, making it difficult to organize the memory of a trauma or stressful experience. Memories lose their context and become fragmented...
...guard one of the code talkers, Ben Yahzee (Adam Beach). Joe is to protect the Navajo if possible, to kill him if it looks as if Ben will be captured by the Japanese. Joe, however, is a bit shell-shocked, or as we now say, suffering post-traumatic stress syndrome. He has followed orders before, and, as a result, is the sole, death-haunted survivor of a unit he led into an ambush. He resolves not to become too close to a man he may have to kill. But the Navajo is a charmer, and the movie heads toward...