Sara Shearer

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‘Love’ hormone oxytocin regulates female sexual behavior, study suggests

Previous research shows that the hormone oxytocin stimulates social behavior in humans, but a study published Thursday in the journal <i>Cell</i> suggests the hormone plays an especially strong role in regulating female sexual behavior.<p>Scientists at The Rockefeller University in New York City genetically …

Tech and Science

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The Persistent Myth of the Narcissistic Millennial

People are still lobbing the same accusations at Millennials, even though evidence shows they're not any more self-absorbed than their predecessors.<p>A few months ago, the news went viral that the American Psychiatric Association had classified “taking selfies” as a sign of a mental disorder. It lit …

Science Has Great News for People Who Read Actual Books

It's no secret that reading is good for you. Just six minutes of reading is enough to reduce stress by 68%, and numerous studies have shown that …

700-year-old viruses found in ancient reindeer poop

Scientists have discovered two viruses that were preserved for 700 years in frozen reindeer poop collected from northern Canada.<p>One of the viruses had probably infected plant material that passed through the animal's digestive system; the other appears to have infected insects that swarmed around …

Biology

New Study: Being Bilingual Slows Down Brain Ageing

Speaking a second language can slow down the ageing of the brain, a study has said.<p>According to the paper, published in Annals of Neurology, the …

Aerobics for the brain? Fitness experts praise mindfulness meditation

NEW YORK (Reuters) - Fitness experts call it bicep curls for the brain and aerobics for the mind. Whatever the name, athletes and gym addicts are discovering how mindfulness meditation can enliven a workout routine and invigorate a sports performance.<p>They say that mindfulness meditation, which …

Pregnancy Hormone May Reduce Multiple Sclerosis Symptoms

For decades, women with multiple sclerosis have noticed that they tend to do better while they are pregnant. That has led to an experimental drug for the disease that's based on a hormone associated with pregnancy.<p>The hormone is a form of estrogen called estriol. It's abundant in a woman's body …

Evaluating Ebola as a Biological Weapon

Over the past few weeks, I've had people at speaking engagements ask me if I thought the Islamic State or some other militant group is using Ebola as …

Measles becomes a 'biological weapon' against cancer

A patient with supposedly incurable cancer is now in complete remission thanks to a new experimental treatment she received at the Mayo Clinic: Killing cancer cells with massive doses of the measles virus.<p>The patient suffered from multiple myeloma, a cancer of the bone marrow. Last June, doctors at …

Sugary drinks linked to biological ageing

Drinking sugary soft drinks may accelerate biological ageing as much as smoking, a study has found.<p>The findings, from an analysis of thousands of DNA …

Some People Don’t Fit Into the Biological Category of ‘Man’ or ‘Woman’

We talked to a doctor to find out why the letter "I" for Intersex should be placed after "LGBT".<p>In the Netherlands there are about eighty thousand people who, according to doctors, physically don’t fit in the ‘man’ or ‘woman’ category: people with an intersex condition. You might not know it but …

If Synthetic Biology Lets Us Play God, We Need Rules

Synthetic biology has been called “genetic engineering on steroids.” It’s also been described as so difficult to pin down that five scientists would …

Upgrading Inequality: Will Rich People Become a Superior Biological Caste?

Equality is one of the most sacred values of modern society. Yet modern society is poised to become the most unequal in history. For humankind might soon split into biological castes, with upper-class humans transformed into gods.<p>When we think about the future, we generally think about a world in …

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The Biology Of Altruism: Good Deeds May Be Rooted In The Brain

Four years ago, Angela Stimpson agreed to donate a kidney to a complete stranger.<p>"The only thing I knew about my recipient was that she was a female and she lived in Bakersfield, Calif.," Stimpson says.<p>It was a true act of altruism — Stimpson risked pain and suffering to help another. So why did …