Edis Mien Savira

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Do Your Gut Bacteria Influence Your Metabolism?

In a new study, researchers were able to make mice lean or obese by altering their gut bacteria. Jeffrey Gordon, an author of the study, discusses how the interaction between diet and the microbial community in our gut influences our health.<p>Transcript<p>IRA FLATOW, HOST:<p>This is SCIENCE FRIDAY. I am …

Video: Can you trust your eyes?

New video from asapSCIENCE. Some Friday fun with optical illusions!<p>Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral …

Sexiest parts of the body revealed by neuroscientists

The mind, said Raquel Welch, is an erogenous zone. And it is the brain, and how it organises our erogenous zones, that has intrigued scientists for decades. Why is a nuzzled neck sexy when few would be turned on by a nuzzled nose? And why do men seem to have fewer erogenous zones than women? A new …

'Memory Pinball' And Other Reasons You Need A Nap

We spend about one-third of our lives sleeping, but much of that function remains a mystery. <i>Weekend Edition Sunday</i> is asking some pretty fundamental, yet complicated, questions about why we do it and why we can't seem to get more of it.<p>Dr. Matthew Walker says the question of why we sleep remains …

The Mysteries Of Sleep Were Just Too Mysterious

Before he was a journalist, NPR science correspondent Joe Palca studied psychology, and focused on sleep research. He found it frustrating to study sleep: Though there are many questions about why and how we sleep, scientists have very few answers.<p>Transcript<p>RACHEL MARTIN, HOST:<p>We've been exploring …

Dreams: The Telling Tells More Than The Contents

How we describe our dreams can be more important than what they contain. Host Rachel Martin talks with Stephen Grosz, a practicing psychoanalyst and the author of <i>The Examined Life: How We Lose and Find Ourselves</i>. Grosz uses dreams to better understand his patients' motivations and …

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From Birth, Our Microbes Become As Personal As A Fingerprint

Look in the mirror and you won't see your microbiome. But it's there with you from the day you are born. Over time, those bacteria, viruses and fungi multiply until they outnumber your own cells 10 to 1.<p>As babies, the microbes may teach our immune systems how to fight off bad bugs that make us sick …

Human genome sequencing: the real ethical dilemmas

Good science fiction always tries to be thought-provoking about the present, not just the future. Rarely has this been accomplished as successfully as in Andrew Nicoll's movie Gattaca. Released in 1997, just as the sequencing of the human genome neared completion, this dystopian vision portrayed a …

Calcium block may be a first in treating pancreatitis - Futurity

Scientists may be on the brink of a treatment for acute pancreatitis—a disease that is …

'Lean' gut microbes fight weight gain, but diet is key - Futurity

Transplanting “lean” intestinal microbes in mice helped prevent weight gain, but researchers say it won’t …

Nutrition

Do bad 'seeds' drive Alzheimer's and mad cow disease? - Futurity

Many brain diseases associated with aging, such as Alzheimer’s and Parkinson’s, are caused by specific …

Why Mars Colonists Will Definitely Go Crazy

A space colony could be a breeding ground for mental illness.<p>Everyone and their mother wants to send people to Mars these days. Dutch spaceflight nonprofits, President Obama, and even Buzz Aldrin have seriously discussed plans to put humans on the inhospitable planet in the next few decades. But …

Use microbes, not pesticides, to boost crop yields - Futurity

Smarter use of microbes that live in and around crops could pay huge dividends for …

Clemson University

Why Is the Sky Blue? Why Are Sunsets Colorful?—Answers Here

The color of the sky has a lot to do with how thick the atmosphere is between the sun and a given vantage point.<p>Google+ hosted an online conference …

W. Antarctica was source of 'extra ice' 34 million years ago - Futurity

An ice sheet on West Antarctica existed 20 million years earlier than previously thought, new …

Chemical Analysis Finds A Whiskey's Unique Fingerprint

How to tell different whiskeys apart scientifically<p>Just as Scottish and Irish accents are clearly different from American English ones, so are Scotch and Irish whiskeys chemically distinct from their American counterparts, and ongoing research is analyzing exactly how.<p>Food science researchers at …

Gadget IDs 'fingerprints' of ancient tools - Futurity

A new portable X-ray fluorescence device—about the size of a cordless drill—lets archaeologists source obsidian …

Naturally secreted chemicals could make you invisible to mosquitos

Mosquitos are undoubtably one of nature's most annoying lifeforms — annoying at the best of times, and disease-carriers at the worst. Humanity has made many efforts at repelling the troublesome insects, with the chemical DEET being perhaps the most well known example, but a group of scientists from …

Testicle size may indicate men's childcare aptitude, suggests US study

Men's aptitude for childcare may be reflected in the size of their testes, according to a study by US scientists.<p>Researchers found that men with smaller testes were more likely to take charge of children's bath-time, visits to the doctor, night-time comforting, and other parenting jobs than others …

Baby talk: newborns recall words heard in the womb, research shows

Don't save the baby talk until you've got a newborn to coo at: new research offers provocative evidence that an unborn fetus can not only hear sounds from the outside world, but is actually capable of recalling specific words in the days following birth.<p>In a study out of the University of Helsinki …

Why Do We Pathologize Gender Nonconformity?

What Chelsea Manning's gender dysphoria reveals about the limits of psychiatric diagnoses<p>Chelsea Manning, the former intelligence analyst recently sentenced to 35 years in prison for leaking classified material to WikiLeaks, made headlines this week when she announced that she wished to change her …

False memory planted in mouse's brain

Scientists have implanted a false memory in the brains of mice in an experiment that they hope will shed light on the well-documented phenomenon …

Researchers Successfully Implant Mice With False Memories

So it is possible.<p>Call it cool or just plain creepy: Memory researchers from U.S. and Japan have, for the first time, implanted false memories into a lab animal.<p>The researchers made mice believe that they had once received electrical shocks in their feet while sitting in a certain little chamber, …

Prehistoric DNA sequencing: Jurassic Park was not so wide of the mark

It remains one of the most intriguing premises for a science fiction film. Near the beginning of Steven Spielberg's classic <i>Jurassic Park</i>, scientists …

Gender selection: The West wants girls – but who decides?

The proposal to allow IVF embryos to be selected by sex risks turning babies into commodities<p>One thing to expect when you’re expecting is that everyone you know, and quite a few people you don’t, will ask you whether you know what you’re having. What they mean is, boy or girl? The correct response, …

Would A Human Head Transplant Be Ethical?

A couple professors sound off about the ethics of transplanting one human's head onto another human's body.<p>Two days ago, we reported on a controversial paper by Italian neurosurgeon Sergio Canaveri about human head transplants. The paper, entitled "HEAVEN: The head anastomosis venture Project …