Feeling sated can become a cue to eat more

Medicine
When hunger pangs strike, we usually interpret them as a cue to reach for a snack; when we start to feel full, we take it as a sign that we should stop eating. But new research shows that these associations can be learned the other way around, ...

Elderly who have trouble identifying odors face risk of dementia

Medicine
A long-term study of nearly 3,000 adults, aged 57 to 85, found that those who could not identify at least four out of five common odors were more than twice as likely as those with a normal sense of smell to develop dementia within five years. Although ...

Meet the hominin species that gave us genital herpes

Paleontolgy
Two herpes simplex viruses infect primates from unknown evolutionary depths. In modern humans these viruses manifest as cold sores (HSV1) and genital herpes (HSV2). Unlike HSV1, however, the earliest proto-humans did not take HSV2 with them when our ancient lineage split from chimpanzee precursors around 7 million ...

Study provides first estimate of total US population with felony ...

Antropology
Athens, Ga. – New research led by a University of Georgia sociologist on the growth in the scope and scale of felony convictions finds that, as of 2010, 3 percent of the total U.S. population and 15 percent of the African-American male population have served time in ...

Disease resistance successfully spread from modified to wild mosquitoes

BiologyMore Science
Using genetically modified (GM) mosquitoes to reduce or prevent the spread of infectious diseases is a new but rapidly expanding field of investigation. Among the challenges researchers face is ensuring that GM mosquitoes can compete and mate with their wild counterparts so the desired modification is preserved ...

New gravitational wave hits Earth — For the first time, ...

More Science
University Park, PA — For the first time, three detectors have tracked the gravitational waves emitted by a merger of two black holes — a critical new capability that allows scientists to more closely locate a gravitational wave’s birthplace in space. Gravitational waves are ripples in space ...

The hormone that could be making your dog aggressive

More Science
For some dog owners, a leisurely walk can turn stressful the moment their canine companion sees another pup walking by. Dogs with what is known as “leash aggression” may bark, growl or lunge at other dogs during walks, setting the scene for a tense and potentially dangerous ...

Lost continent of Zealandia: Scientists return from expedition to sunken ...

Geology
After a nine-week voyage to study the lost, submerged continent of Zealandia in the South Pacific, a team of 32 scientists from 12 countries has arrived in Hobart, Tasmania, aboard the research vessel JOIDES Resolution. Researchers affiliated with the International Ocean Discovery Program (IODP) mounted the expedition ...
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  • How wildfire smoke affects the atmosphere and climate October 20, 2017
    Light-absorbing organic particulate matter, also known as brown carbon aerosol, in wildfire smoke loses its ability to absorb sunlight the longer it remains in the atmosphere, new research suggests. “Our study casts doubts on the warming implications of brown carbon…” Brown carbon aerosol changes its properties from light-absorbing to light-scattering the longer it remains in […]
  • 6 ways health would suffer on a trip to Mars October 20, 2017
    NASA has aims to have humans on Mars by the 2030s—but long-distance space travel comes with a unique set of health problems. How will those who make the trip cope with the mental and physical rigors of the journey? What role will isolation and stress play? And what are the health dangers? “I’d be very […]