This is especially true for women, who, according to a new Swedish study, tend to feel less happy and content with their lives after prolonged Facebook usage.

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Lehmann, the lead author of the paper which is published in the journal Nature Geosciences, said that the black carbon content of soils in the study ranged from zero to 82 percent of soil organic carbon.

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According to a recent study, people who are happy and content live longer.

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According to the new study "The Evolution of Video Gaming and Content Consumption" from PricewaterhouseCoopers, gamers -- like the general consumer population -- are becoming multitaskers.

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In a study designed by InnerScope, 100 subjects were invited to browse news content on three websites (msnbc.com, cnn.com and nytimes.com), which were populated by ads for nine different brands in the three new formats.

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Weight Loss: Diets with high protein content and a low glycemic index may improve overweight people's ability to maintain weight loss, according to a study in the New England Journal of Medicine.

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Given that the association between diet drinks and with vascular events is unexpected and unsupported by other research, a study that controlled for specific ingredients, such as the type of sweetener and caffeine content, is needed to assess whether there are grounds for a plausible mode of action.

FORBES: Will Drinking Diet Soda Increase Your Risk For A Heart Attack?