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The people who multitask the most are the ones who are worst at it. That's the surprising conclusion of researchers at Stanford University, who found multitaskers are more easily distracted and less able to ignore irrelevant information than people who do less multitasking.

"The huge finding is, the more media people use the worse they are at using any media. We were totally shocked," Clifford Nass, a professor at Stanford's communications department, said in a telephone interview.

The rate of severe obesity among U.S. children and teenagers more than tripled over the past three decades, a new study finds.

The canine IQ test results are in: Even the average dog has the mental abilities of a 2-year-old child. The finding is based on a language development test, revealing average dogs can learn 165 words (similar to a 2-year-old child), including signals and gestures, and dogs in the top 20 percent in intelligence can learn 250 words.

Global warming has melted glaciers in the United States at a rapid and accelerating rate over the last half-century, increasing drought risks and contributing to rising sea levels, the federal government will report today based on data from a 50-year study of glaciers in Alaska and the Pacific Northwest.

Seven out of 10 children and young adults don't get enough vitamin D, which could increase their risk for bone and heart problems, ...

Researchers for the first time have linked air pollution exposure before birth with lower IQ scores in childhood, bolstering evidence that smog may harm the developing brain.

The results are in a study of 249 children of New York City women who wore backpack air monitors for 48 hours during the last few months of pregnancy. They lived in mostly low-income neighborhoods in northern Manhattan and the South Bronx. They had varying levels of exposure to typical kinds of urban air pollution, mostly from car, bus and truck exhaust.

Good news for Payless. As if you really needed another reason to go shoe shopping, a new study finds that women who wear high heels not only have toner legs, but they also have better, more pleasurable sex lives.

Women who use hormone therapy after menopause may be at a higher risk of ovarian cancer, and the risk remains elevated for up to two years after women stop taking estrogen, a new study says.

Researchers identify what it takes to keep a couple together, and it's a lot more than being in love.

Cutting daily calorie intake by 30 percent may put the brakes on the aging process, have beneficial effects on the brain, and result in a longer life span, according to a new 20-year study of monkeys published in the journal Science.