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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.

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. 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.

With Halloween around the corner, parents are fretting over what all that candy will do to their little goblins. Well, it might just make them sweeter

By Barbara Goldberg NEW YORK (Reuters) - One of the darkest Halloweens ever loomed for about 3 million households left without power on Sunday by a rare October snowstorm in the Northeast that bedeviled transportation and killed at least eight people.

Mobile DNA molecules that jump from one location in the genome to another may contribute to neurological diseases and could have subtle influences on normal brain function and behavior, according to a study published October 30 in Nature .

Americans spend nearly $7 billion on Halloween . Mostly on candy, and mostly on chocolate.

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Learn the latest psychology behind why it's hard to be happy, and take our quiz to learn how your contentment compares to that in other cultures [More] Presented By: Is your business ready for emergencies?

Name: Kelli Hoover Title: Professor of entomology, Pennsylvania State University [More]