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December 13, 2012 A fresh look at what makes people sick around the world finds that life expectancy has ticked up in the past 20 years. But people aren't necessarily in the best of health during those extra years. Chronic problems, like depression and pain, are on the rise.

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September 14, 2012 People with stressful jobs had a 23 percent higher risk of heart attack than those whose jobs weren't pressure cookers. A stressful job has to combine intense demands and little control over decisions about the work.

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August 31, 2012 A team of doctors and scientists, known as disease detectives, fly around the world on a moments notice to investigate mystery illnesses or contain outbreaks. These Sherlock Holmes of medicine chatted on Twitter about what it's like to be a disease detective and how you snag the gig.

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February 24, 2012 When sick people search the Web for remedies or tweet about their symptoms, they're sending an early warning signal about disease outbreaks. Now scientists and public health officials are listening in.

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