West Australian health experts are urging older people to get active after trial results show for the first time that just 20 minutes of activity each day can prevent memory deterioration. In a world-first, a team from the WA Centre for Health and Ageing (WACHA) based at the Western Australian Institute for Medical Research (WAIMR) say their trials results in the Journal of the American Medical Association have shown that regular physical activity can lead to a lasting improvement in memory function.

WACHA director Professor Leon Flicker said people over the age of 50 could proactively prevent memory deterioration by joining in simple and easy exercises each day.

Molecular imaging aims at the use of imaging probes to visualize specific cellular or sub cellular processes that occur before changes in morphology and function. This is highly relevant because impairments of such processes often are precursors or earliest stages of cardiovascular disease. They are also involved in the early response to therapy or may identify candidates most suitable for a specific therapy.

Probes for multiple molecular pathways, including cardiac metabolism, cell death, neurotransmission, receptors, cell-matrix interaction and cell trafficking have been developed in early experimental work and are increasingly translated into the clinical arena.

Variation in the gene for one of the receptors for the hormone vasopressin appears to be associated with how human males bond with their partners, according to an international team of researchers.

The researchers found that the "334" allele of a common AVPR1A variation, the human version of avpr1a studied in voles, seemed to have negative effects on men's relationship with their spouses.

"Our findings are particularly interesting because they show that men who are in a relatively stable relationship of five years of more who have one or two copies of allele 334 appear to be less bonded to their partners than men with other forms of this gene," says Jenae Neiderhiser, professor of psychology, Penn State. "We also found that the female partners of men with one or two copies of allele 334 reported less affection, consensus and cohesion in the marriage, but interestingly, did not report lower levels of marital satisfaction than women whose male partners had no copies of allele 334."

Being an athlete or merely a fan improves language skills when it comes to discussing their sport because parts of the brain usually involved in playing sports are instead used to understand sport language, new research at the University of Chicago shows.

The research was conducted on hockey players, fans, and people who'd never seen or played the game. It shows, for the first time, that a region of the brain usually associated with planning and controlling actions is activated when players and fans listen to conversations about their sport. The brain boost helps athletes and fans understanding of information about their sport, even though at the time when people are listening to this sport language they have no intention to act.

Older age among fathers may be associated with an increased risk for bipolar disorder in their offspring, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

Bipolar disorder is a common, severe mood disorder involving episodes of mania and depression, according to background information in the article. Other than a family history of psychotic disorders, few risk factors for the condition have been identified. Older paternal age has previously been associated with a higher risk of complex neurodevelopmental disorders, including schizophrenia and autism.

Excavations at Kfar HaHoresh, in the north of Israel, led by Prof. Nigel Goring-Morris of Hebrew University's Institute of Archaeology, have revealed a prehistoric funerary precinct dating back to 6,750-8,500 BC. This funerary has grave goods including phallic figurines and sea shells from the Mediterranean and Red Seas, along with other items from Syria, Cyprus and Anatolia.

While fertility symbols during this period are often associated with female imagery, at Kfar HaHoresh only phallic figurines have been found to date, including one placed as a foundation deposit in the wall of the precinct.

Burials at the site now total at least 65 individuals, and display an unusual demographic profile – with an emphasis on young adult males. Graves occur under or associated with lime-plaster surfaced L-shaped walled structures, and are varied in nature from single articulated burials through multiple secondary burials with up to 17 individuals. Bones in one had been intentionally re-arranged in what appears to be a depiction.