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Using an artificial intestine they created, researchers have shown that the microbiome can quickly adapt from the bacterial equivalent of a typical western diet to one composed exclusively of dietary fats.

Using an artificial intestine they created, researchers have shown that the microbiome can quickly adapt from the bacterial equivalent of a typical western diet to one composed exclusively of dietary fats.

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With proper nutrition guidance, it is safe and feasible to restrict weight gain in obese and overweight pregnant women, a new study shows.

With proper nutrition guidance, it is safe and feasible to restrict weight gain in obese and overweight pregnant women, a new study shows.

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When mothers use marijuana during the first 12 years of their child's life, their cannabis-using children are more likely to start at an earlier age than children of non-using mothers, according to a new study. This study is the first to establish a relationship between maternal cannabis use during a child's lifetime and earlier initiation in a nationally-representative, longitudinal cohort.

When mothers use marijuana during the first 12 years of their child's life, their cannabis-using children are more likely to start at an earlier age than children of non-using mothers, according to a new study. This study is the first to establish a relationship between maternal cannabis use during a child's lifetime and earlier initiation in a nationally-representative, longitudinal cohort.

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Long-held assumptions that stepfathers are far more likely to be responsible for child deaths than genetic parents have now been challenged. Findings suggest that differences in rates of child homicides by stepfathers and genetic fathers are considerably smaller than previous researchers have claimed, and that the relative ages of fathers implicated in these crimes is more significant than whether they are the biological father of the child.

Long-held assumptions that stepfathers are far more likely to be responsible for child deaths than genetic parents have now been challenged. Findings suggest that differences in rates of child homicides by stepfathers and genetic fathers are considerably smaller than previous researchers have claimed, and that the relative ages of fathers implicated in these crimes is more significant than whether they are the biological father of the child.

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Researchers have found a way to create innovative materials by blending metals with precision control. Their approach, based on a concept called atom hybridization, opens up an unexplored area of chemistry that could lead to the development of advanced functional materials.

Researchers have found a way to create innovative materials by blending metals with precision control. Their approach, based on a concept called atom hybridization, opens up an unexplored area of chemistry that could lead to the development of advanced functional materials.

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Odors surround us, providing cues about many aspects of personal identity, including health status. Now, research extends the scope and significance of personal odors as a source of information about an individual's health. A new paper reports that the bodily odors of otherwise healthy animals sharing an environment with sick animals become like the odors of the sick animals.

Odors surround us, providing cues about many aspects of personal identity, including health status. Now, research extends the scope and significance of personal odors as a source of information about an individual's health. A new paper reports that the bodily odors of otherwise healthy animals sharing an environment with sick animals become like the odors of the sick animals.

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The taller you are, the more likely you are to develop varicose veins, according to a researchers who examined the genes of more than 400,000 people in search of clues to what causes this common but little understood condition.

The taller you are, the more likely you are to develop varicose veins, according to a researchers who examined the genes of more than 400,000 people in search of clues to what causes this common but little understood condition.

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Human-caused climate change has exposed US national parks to conditions hotter and drier than the rest of the nation, says a new study quantifying for the first time the magnitude of climate change on all 417 parks in the system. Without action to limit greenhouse gas emissions, many small mammals and plants may be brought to the brink of extinction by the end of the century, the study shows.

Human-caused climate change has exposed US national parks to conditions hotter and drier than the rest of the nation, says a new study quantifying for the first time the magnitude of climate change on all 417 parks in the system. Without action to limit greenhouse gas emissions, many small mammals and plants may be brought to the brink of extinction by the end of the century, the study shows.

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Scientists have developed a blood test to tell whether you have skipped a night's sleep, bringing us a step closer to developing a test for driver sleepiness. The breakthrough could help police identify suspected drowsy drivers in road traffic accidents, or assist employers in assessing fitness for duty, such as in the aviation sector.

Scientists have developed a blood test to tell whether you have skipped a night's sleep, bringing us a step closer to developing a test for driver sleepiness. The breakthrough could help police identify suspected drowsy drivers in road traffic accidents, or assist employers in assessing fitness for duty, such as in the aviation sector.

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New studies are among the first to associate fractures with systemic bone loss. They also begin the path to finding treatments that preserve long-term skeletal health and reduce susceptibility to additional fractures and, potentially, osteoporosis.

New studies are among the first to associate fractures with systemic bone loss. They also begin the path to finding treatments that preserve long-term skeletal health and reduce susceptibility to additional fractures and, potentially, osteoporosis.

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