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Anxiety around children's eating habits often peaks during sweets-laden holidays like Halloween, but the factors that contribute to excess weight in kids extend well beyond special occasions. Most children who are obese--now 17 percent in the U.S.--will carry that extra heft into adulthood, along with the long-term health consequences

It’s time to get scared. Nightmare On Elm Street, Psycho, Texas Chainsaw Massacre will be airing on TVs through to midnight tonight, Halloween.

It’s time to get scared.

It’s time to get scared. Nightmare On Elm Street, Psycho, Texas Chainsaw Massacre will be airing on TVs through to midnight tonight, Halloween.

In 2009, researchers from the biotechnology company Oxitec released over 18,000 genetically modified mosquitoes in a bid to reduce the wild mosquito population. The mosquitoes were designed so that in theory, when these modified male mosquitoes mate with wild females, the offspring would be infertile .

Many physicists are great at figuring out how the world works, but less adept at describing those workings to a nontechnical audience.

Many physicists are great at figuring out how the world works, but less adept at describing those workings to a nontechnical audience. Brian Greene, a theoretical physicist at Columbia University, is an exception to that stereotype

Many physicists are great at figuring out how the world works, but less adept at describing those workings to a nontechnical audience. Brian Greene, a theoretical physicist at Columbia University, is an exception to that stereotype.

By David Cyranoski of Nature magazine Two of the largest studies yet carried out on the genetics of schizophrenia in Chinese populations have turned up three genetic loci, or chromosomal regions, previously not known to be related to the disease.

By David Cyranoski of Nature magazine Two of the largest studies yet carried out on the genetics of schizophrenia in Chinese populations have turned up three genetic loci, or chromosomal regions, previously not known to be related to the disease. These genome-wide association studies (GWAS), done independently and published in Nature Genetics on October 30, also begin to redress a geographical imbalance: until now, GWAS have focused mainly on Western populations.

By David Cyranoski of Nature magazine Two of the largest studies yet carried out on the genetics of schizophrenia in Chinese populations have turned up three genetic loci, or chromosomal regions, previously not known to be related to the disease. These genome-wide association studies (GWAS), done independently and published in Nature Genetics on October 30, also begin to redress a geographical imbalance: until now, GWAS have focused mainly on Western populations

At current growth rates, forecasters expect to see a total of 9.1 billion humans on Earth by 2050, although small shifts in the birth rate might add or subtract one billion people.

At current growth rates, forecasters expect to see a total of 9.1 billion humans on Earth by 2050, although small shifts in the birth rate might add or subtract one billion people. The rise could be slowed without taking any direct measures to control population. The most effective way to reduce fertility rates is to educate women: worldwide, each additional year of female education lowers the average birth rate further

At current growth rates, forecasters expect to see a total of 9.1 billion humans on Earth by 2050, although small shifts in the birth rate might add or subtract one billion people. The rise could be slowed without taking any direct measures to control population. The most effective way to reduce fertility rates is to educate women: worldwide, each additional year of female education lowers the average birth rate further

Chocolate may be the most sought-after treat among trick-or-treaters on Halloween, with little hands grasping for all of the milk- and dark-chocolate morsels they can collect, but the details of its taste and aroma profiles have long eluded scientists. [More]