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Fox News, Vancouver Sun: Being physically active while pregnant may help women gain a little bit less weight, according to a new review of recent research. Pooling the results of 12 studies, researchers in Munich, Germany, found that women who exercised while pregnant gained an average of 1.3 fewer pounds than women who didn't. Dr. Michael Kramer of 9I制作厂免费 in Montreal reviewed the findings for Reuters Health.