There is no evidence that impaired blood flow or blockage in the veins of the neck or head is involved in multiple sclerosis, according to a new paper in an open access journal.

Difficulty in registering and responding to facial expressions is a characteristic of autism and somr functional imaging studies claim that individuals with autism, and its very wide modern spectrum of disorders, display altered brain activations when processing facial images.

The hormone oxytocin plays a role in the social interactions of both animals and humans. Studies conducted with healthy volunteers have provided evidence for beneficial effects of oxytocin in terms of increased trust, improved emotion recognition, and preference for social stimuli.

Finasteride, a generic drug used by physicians to treat enlarged prostate and male pattern baldness, was found to significantly reduce the risk of prostate cancer. During the trial of 19,000 men, a slightly higher percentage of those on finasteride developed high-grade cancer than those taking a placebo. This difference shrank in the follow-up analysis, which caused concern and debate in the medical community, and doctors backed away from prescribing the drug.

Some of the ancient civilizations that flourished in regions of the Eastern Mediterranean - Aegean, Egyptian, Syro-Palestinian, and Hittite civilizations - collapsed during the late Bronze Age. 

Hieroglyphic and cuneiform text remains portray invasions of the “Peoples-of-the-Sea” at the Nile Delta, the Turkish coast, and down into the heartlands of Syria and Palestine. Armies clashed, famine-ravaged cities were abandoned, and countrysides were depopulated. Mycenaean, Hittites, Canaanites and Egypt's New Kingdom all suffered dramatic declines.

When it comes to what's for dinner – or breakfast and lunch for that matter - too many people suffer from chemophobia, an irrational fear of chemicals that pose no risk to our health.

Chemistry Professor Gordon Gribble argues that low doses of chemicals in modern food are inherent, typically harmless and often highly beneficial. He says most people don't know they are routinely exposed to a host of compounds in non-toxic concentrations in what they eat and drink each day.

Even the air we breathe, whether in big cities or the countryside, is full of naturally occurring and synthetic chemicals, including wine "aroma," flower "bouquet," perfume "fragrance," bakery "smell" and "garbage "stench."

Physicists have successfully teleported information in a solid state system for the first time - they moved information from A to B for the first time in an electronic circuit, similar to a computer chip.

The essential difference between their method and the usual computer chip is that the information is not stored and processed based on the laws of classical physics, but on those of quantum physics. The researchers were able to teleport information across a distance of about six millimeters, from one corner of a chip to the opposite one. This was shown to be possible without transporting the physical object carrying the information itself from the sender's to the receiver's corner.