Two people can learn to cooperate with each other intuitively — without communication or any conscious intention to cooperate. But this process breaks down in groups of three or more.
A study by members of the University of Leicester’s School of…
Depression is more dangerous for elderly men than women, with depression starting in old age representing the greatest risk for men, according to a long-term study. “Depression may be an early sign of impending physical decline,” says study author Kaarin Anstey, Ph.D., of the Center for Mental Health Research at Australian National University in Canberra, Australia. “Or it may incur a physiological response that predisposes individuals to cardiovascular disease or cancer.”
Viagra may help to save many species of animals and plants that are now endangered due to the demand for animal sexual potency products, according to new research from the University of New South Wales and the University of Alaska. The research suggests that the availability of viagra is having an impact on trade in some of the products, which are used in traditional Chinese medicine to treat impotence, including body parts from seals, deer, green turtles, sea cucumbers, pipefishes, sea horses and geckos.