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The Woman Who is the “Mother” of Us All

The Woman Who is the “Mother” of Us All | Exploring Life | Scoop.it
Today I found out that all humans can be traced back to a single female known as Mitochondrial Eve.
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Illustrating Alchemy, 18th Century | The Scientist Magazine®

Illustrating Alchemy, 18th Century | The Scientist Magazine® | Exploring Life | Scoop.it
As the science of chemistry developed, public perceptions of alchemists shifted from respect to ridicule.
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Sex and Drugs | The Scientist Magazine®

Sex and Drugs | The Scientist Magazine® | Exploring Life | Scoop.it
Did 20th-century pharmaceutical and technological advances shape modern sexual behaviors?
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Moving home? Your microbes will make the trip too - health - 28 August 2014 - New Scientist

Moving home? Your microbes will make the trip too - health - 28 August 2014 - New Scientist | Exploring Life | Scoop.it
Families have identifiable collections of microbes that travel with them. It can take just 24 hours for the microbes to take over a new house
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New Study Offers Clues to Swift Arctic Extinction

New Study Offers Clues to Swift Arctic Extinction | Exploring Life | Scoop.it
A study seems to rule out assimilation as the reason for the sudden disappearance of the Paleo-Eskimo population that thrived alone for more than 4,000 years.
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Light-Activated Memory Switch | The Scientist Magazine®

Light-Activated Memory Switch | The Scientist Magazine® | Exploring Life | Scoop.it
Scientists use optogenetics to swap out negative memories for positive ones—and vice versa—in mice.
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Marijuana compound may offer treatment for Alzheimer's disease, study suggests

Marijuana compound may offer treatment for Alzheimer's disease, study suggests | Exploring Life | Scoop.it
Extremely low levels of the compound in marijuana known as delta-9-tetrahydrocannabinol, or THC, may slow or halt the progression of Alzheimer's disease, a recent study from neuroscientists suggests.
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Alcohol-dependence gene linked to neurotransmitter

Scientists have solved the mystery of why a specific signaling pathway can be associated with alcohol dependence. The new research shows the gene, Nf1, regulates gamma-aminobutyric acid (GABA), a neurotransmitter that lowers anxiety and increases relaxation feelings.
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Flexing the brain: Why learning tasks can be difficult

Flexing the brain: Why learning tasks can be difficult | Exploring Life | Scoop.it
Learning a new skill is easier when it is related to an ability we already have. For example, a trained pianist can learn a new melody easier than learning how to hit a tennis serve. Scientists have discovered a fundamental constraint in the brain that may explain why this happens.
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Link between prenatal antidepressant exposure, autism risk called into question

Link between prenatal antidepressant exposure, autism risk called into question | Exploring Life | Scoop.it
Previous studies that have suggested an increased risk of autism among children of women who took antidepressants during pregnancy may actually reflect the known increased risk associated with severe maternal depression. Now researchers have called that into question with further studies -- and complex answers.
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Inside the Teenage Brain: New Studies Explain Risky Behavior

Inside the Teenage Brain: New Studies Explain Risky Behavior | Exploring Life | Scoop.it
It’s common knowledge that teenage boys seem predisposed to risky behaviors. Now, a series of new studies is shedding light on specific brain mechanisms that help to explain what might be going on inside juvenile male brains.
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Social class makes a difference in how children tackle classroom problems

Social class makes a difference in how children tackle classroom problems | Exploring Life | Scoop.it
Social class can account for differences in how parents coach their children to manage classroom challenges, a study shows. Such differences can affect a child's education by reproducing inequalities in the classroom. With the widening gaps in educational outcomes between social classes, the researcher suggested that this study could help schools become more aware of these differences and make moves to reduce the inequalities.
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Junk food makes rats lose appetite for balanced diet

Junk food makes rats lose appetite for balanced diet | Exploring Life | Scoop.it
A diet of junk food not only makes rats fat, but also reduces their appetite for novel foods, a preference that normally drives them to seek a balanced diet, reports a study. "The interesting thing about this finding is that if the same thing happens in humans, eating junk food may change our responses to signals associated with food rewards," says an author. "It's like you've just had ice cream for lunch, yet you still go and eat more when you hear the ice cream van come by."
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Exposure to toxins makes great granddaughters more susceptible to stress

Exposure to toxins makes great granddaughters more susceptible to stress | Exploring Life | Scoop.it
Male and female rats are affected differently by ancestral exposure to a common fungicide, vinclozolin, new research shows. Female rats whose great grandparents were exposed to vinclozolin become much more vulnerable to stress, becoming more anxious and preferring the company of novel females to familiar females.
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Barf-Less Brews | The Scientist Magazine®

Barf-Less Brews | The Scientist Magazine® | Exploring Life | Scoop.it
Genetic engineering could help keep harmful toxins out of barley and beer, but will consumers with a thirst for craft malts and brews buy into it?
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Fish reared on land replay the transition to four legs - life - 27 August 2014 - New Scientist

Fish reared on land replay the transition to four legs - life - 27 August 2014 - New Scientist | Exploring Life | Scoop.it
Unusual fish with lungs have developed walking techniques and bodies like those of the ancestors of four-legged animals after being raised on land
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Open schools later so teens can lie in, say US doctors - health - 25 August 2014 - New Scientist

Open schools later so teens can lie in, say US doctors - health - 25 August 2014 - New Scientist | Exploring Life | Scoop.it
The American Academy of Pediatrics wants all US schools with children aged 10 to 18 to delay their opening times to 8. 30 am or later
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Roots of Alcohol Dependence? | The Scientist Magazine®

Roots of Alcohol Dependence? | The Scientist Magazine® | Exploring Life | Scoop.it
Researchers link a gene already tied to alcohol dependence with a neurotransmitter involved in anxiety and relaxation.
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Evolution used similar molecular toolkits to shape flies, worms, and humans

Evolution used similar molecular toolkits to shape flies, worms, and humans | Exploring Life | Scoop.it
Although separated by hundreds of millions of years of evolution, flies, worms, and humans share ancient patterns of gene expression, according to a massive analysis of genomic data. Two related studies tell a similar story: even though humans, worms, and flies bear little obvious similarity to each other, evolution used remarkably similar molecular toolkits to shape them.
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Dosage of HIV drug may be ineffective for half of African-Americans

Many African-Americans may not be getting effective doses of the HIV drug maraviroc because they are more likely than European-Americans to inherit functional copies of a protein that speeds the removal of the drug from the body.
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Serotonin deficiency? Study throws into question long-held belief about depression

New evidence puts into doubt the long-standing belief that a deficiency in serotonin -- a chemical messenger in the brain -- plays a central role in depression. Scientists report that mice lacking the ability to make serotonin in their brains (and thus should have been 'depressed' by conventional wisdom) did not show depression-like symptoms.
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Educated consumers more likely to use potentially unreliable online healthcare information

Educated consumers more likely to use potentially unreliable online healthcare information | Exploring Life | Scoop.it
Consumers are increasingly turning to forums, video-sharing sites, and peer support groups to gather anecdotal health-care information and advice, which may distract them from more reliable and trustworthy sources. New research studies the characteristics of consumers who use the Internet to collect health-care information.
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Self-deceived individuals deceive others better

Over-confident people can fool others into believing they are more talented than they actually are, a study has found. These 'self-deceived' individuals could be more likely to get promotions and reach influential positions in banks and other organizations. And these people are more likely to overestimate other people's abilities and take greater risks, possibly creating problems for their organizations.
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Why some liquids are 'fragile' and others are 'strong'

Why some liquids are 'fragile' and others are 'strong' | Exploring Life | Scoop.it
Only recently has it become possible to accurately 'see' the structure of a liquid. Using X-rays and a high-tech apparatus that holds liquids without a container, a physicist has compared the behavior of glass-forming liquids as they approach the glass transition. The results are the strongest demonstration yet that bulk properties like viscosity are linked to microscopic ones like structure.
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Nanodiamonds are forever: Did comet collision leave layer of nanodiamonds across Earth?

Nanodiamonds are forever: Did comet collision leave layer of nanodiamonds across Earth? | Exploring Life | Scoop.it
A comet collision with Earth caused abrupt environmental stress and degradation that contributed to the extinction of most large animal species then inhabiting the Americas, a group of scientists suggests. The catastrophic impact and the subsequent climate change also led to the disappearance of the prehistoric Clovis culture, and to human population decline. Now focus has turned to the character and distribution of nanodiamonds, one type of material produced during such an extraterrestrial collision. The researchers found an abundance of these tiny diamonds distributed over 50 million square kilometers across the Northern Hemisphere.
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What's MSG, And Is It Bad For You? | IFLScience

What's MSG, And Is It Bad For You? | IFLScience | Exploring Life | Scoop.it
We live in an odd time. Access to information has never been more readily available, though lack of understanding can cause big problems. That is extremely evident in the field of food sciences, where processed foods, food labeling, and scientific illiteracy have collided into an ongoing Hindenburg-like catastrophe. 
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