Dogs that make so-called puppy eyes at their owners get a spike in the “love hormone” oxytocin — and their owners do too, according to a new study. This same positive feedback in oxytocin release occurs when a mom gazes at her newborn infant, studies have shown.
A Duke University study involving lab mice suggests there’s a link between Alzheimer’s disease and a faulty immune system. The study suggests that certain immune cells that normally protect the brain begin to abnormally consume an important amino acid: arginine.
Characteristics passed between generations are not decided solely by DNA, but can be brought about by other material in cells, new research shows. Scientists studied proteins found in cells, known as histones, which are not part of the genetic code, but act as spools around which DNA is wound. Histones are known to control whether or not genes are switched on.
NASA chief scientist Ellen Stofan said on Tuesday that, within a decade, humanity will have found ‘strong indications’ of alien life. “I think we’re going to have strong indications of life beyond Earth within a decade, and I think we’re going to have definitive evidence within 20 to 30 years,” NASA chief scientist Ellen Stofan said Tuesday (April 7).
Researchers from the University of California, Berkeley, set out to discover exactly that when they tracked emotions such as compassion, joy, love, and so on versus the levels of interleukin-6 (IL-6)—a secretion which causes inflammation in the body—in the saliva of 119 university students. The researchers found that those who regularly have positive emotions have less IL-6—and they noticed the strongest correlation with one particular emotion: awe.
For more than 50 years, scientists had clues suggesting that a tiny songbird known as the blackpoll warbler fly’s nonstop over the Atlantic Ocean, but proof was hard to come by. Now, an international team of biologists report “irrefutable evidence” that the birds complete a nonstop flight ranging from about 1,410 to 1,721 miles (2,270 to 2,770 km) in just two to three days.
A World Health Organization group’s controversial finding that the world’s most popular herbicide “probably is carcinogenic to humans” was based on a thorough scientific review and is a key marker in ongoing evaluations of the product, the scientist who led the study said Thursday.
Using a single particle of light, scientists have for the first time linked together thousands of atoms in a bizarre state known as quantum entanglement, where the behavior of the atoms would stay connected even if they were at opposite ends of the universe. This finding, the largest number of particles that have ever been mutually entangled in an experiment, could lead to more precise atomic clocks, potentially helping to improve GPS, researchers say.
Humans are evolving more rapidly than previously thought, according to the largest ever genetics study of a single population. Scientists reached the conclusion after showing that almost every man alive can trace his origins to one common male ancestor who lived about 250,000 years ago. The discovery that so-called “genetic Adam”, lived about 100,000 years more recently than previously understood suggests that humans must have been genetically diverging at a more rapid rate than thought.
A new patent granted to aircraft, defense and security company Boeing is taking its cues from science fiction. Just like the glowing energy shields seen protecting troops, machines and even spacecraft in Star Wars and Star Trek, the design — named “Method and system for shockwave attenuation via electromagnetic arc” — uses energy to deflect potential damage.
Scientists at Harvard University are one step closer to bringing Woolly mammoths back to life, after successfully inserting some sequences of mammoth DNA into an elephant genome. The study is yet to be published, though, as there is still work to do.