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Genes, Biology and Obesity
Found on another newsgroup:
Scientists Discovering Genes and Biology Are Important in the Fight Against Obesity 09-10-2004 6:09 PM By EMMA ROSS, AP Medical Writer LONDON -- Apart from upbringing and environment, scientists are discovering that genes and biology are more important in the fight against obesity than previously believed. "The people who are not increasing their weight have something special _ they are resistant to obesity," said Philippe Froguel, an obesity exert and chair of genomic medicine at Imperial College in London. At 43, Anita Sanders is a sylph who can eat as much as she likes without having to exercise like a fiend. "I can't say I work hard on trying to stay slim," she admits, adding that she is passionate about food. She puts her slimness down to lucky genes and nervous energy. What, then, explains the ability of Sanders and others like her to stay thin in such an environment? The answer is complex and not the same for everyone. Eating increases the levels of the calming brain chemical dopamine. Brain scans have indicated that obese people have a lower concentration of dopamine receptors in their brains than lean people do. "It's possible that some people need to eat more to get the same level of pleasure," said Dr. Kishore Gadde, director of obesity clinical trials at Duke University Medical Center in North Carolina. Full story at: http://sandiego.cox.net/cci/newsnati... id=D85150C80 |
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