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In decades of experiments with rats, for instance, neuroscientist Michael Meaney at McGill University in Canada and his colleagues have shown how such environmentally induced traits can be passed down - then undone, also by environment. Meaney studied rats with differing maternal styles - some were naturally nurturing (they licked and groomed...
Researchers also posit that high levels of stress hormones caused by ACEs can wear down the body over time. A temporary spike in blood pressure in response to a stressful event may be useful to power an adaptive fight-or-flight response, but over the long term constant high blood...
Recently, scientists have discovered that these changes can themselves be passed down from one generation to the next - a burgeoning new area of study called epigenetics. Such research may have significant and long-term implications for the prevention of obesity, addiction and other illnesses related to early life stress. After...
China: Any hawkish ideas that the Bush Administration may have harbored about aggressively "containing" China went down with the U.S. spy plane that collided with a Chinese fighter off Hainan Island barely two months into the Bush presidency. The resulting standoff reminded both sides that their economic relationship was far...
China's 1989 democracy movement and the current Iranian uprising share some common threads. Both were youth-driven popular movements demanding change, led by loose coalitions of disparate factions that lacked strong leadership. And in both cases, the protesters' demands grew as the regimes clamped down. (See pictures of the...