XMRV, a mouse virus, may be an artifact of laboratory experiments rather than the cause of chronic fatigue syndrome. Whittemore Peterson Institute hide caption

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A Washington man talking on his cellphone may be taking a health risk, according to an analysis from the World Health Organization that finds a possible risk of cancer from exposure to the devices. Nicholas Kamm/AFP/Getty Images hide caption

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Cellphone Use May Be A Cancer Risk After All

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A farmer holds cucumbers in a field in Malaga, Spain. Cucumbers from Spain have been eyed as the source of a disease outbreak in Germany. Jorge Guerrero/AFP/Getty Images hide caption

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Your Health Podcast: Doctors Misbehaving And Measles Raging

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Science Diction: The Origin Of The Word 'Syphilis'

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A study found that women's bones didn't benefit from consuming more than 750 milligrams of calcium a day. Justin Sullivan/Getty Images hide caption

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Extra Calcium May Not Do Older Women Much Good

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Actor Jessica Alba, accompanied by Sen. Frank Lautenberg (D-NJ), reacts when a buzzer calling for a vote goes off during a news conference on Capitol Hill Tuesday about chemical regulation. Evan Vucci/AP hide caption

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