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1 .This is Scientific American 60-Second Mind, I'm Christie Nicholson. Got a minute?
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2 .Children who experience neglect, abuse and poverty have a tougher time as adults than do well-cared-for kids.
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3 .Now there's evidence that such stress can actually change the size of brain structures responsible for learning, memory and processing emotion.
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4 .The finding is in the journal Biological Psychiatry.
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5 .Researchers took images of the brains of 12-year-olds who had suffered either physical abuse or neglect or had grown up poor.
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6 .From the images the scientists were able to measure the size of the amygdala and hippocampus, two structures involved in emotional processing and memory.
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7 .And they compared the sizes of these structures with those of 12-year-old children who were raised in middle-class families and had not been abused.
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8 .And they found that the stressed children had significantly smaller amygdalas and hippocampuses than did the kids from the more nurturing environments.
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9 .Early life stress has been associated with depression, anxiety, cancer and lack of career success later on in adulthood.
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10 .This study on the sizes of brain regions may offer physiological clues to why what happens to toddlers can have such a profound impact decades later.
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11 .Thanks for the minute, for Scientific American 60-Second Mind. I'm Christie Nicholson.
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