Research shows that when soy consumption goes up, weight goes down. A new University of Illinois study may help scientists understand exactly how that weight loss happens.

"We wanted to compare the effects of soy protein hydrolysates and soy peptides with those of leptin because we hypothesized that soy might behave in the body in a similar way. Leptin is a hormone produced in our adipose tissue that interacts with receptors in the brain and signals us that we’re full so we stop eating," said Elvira de Mejia, a U of I assistant professor of food science and human nutrition.

Copper is an essential part of our lives. From copper pipes and wires - to important copper-containing proteins in the body, copper is necessary for healthy growth and neurological development. Researchers at the Montreal Neurological Institute at McGill University are studying how copper is processed in our bodies and its distinct role in early development. Their findings, published in a recent edition of the journal Cell Metabolism, identify a new role for two proteins involved with copper regulation.

Was Chris De Burgh's sexy "Lady in Red," perhaps, ovulating? A new UCLA and University of Wisconsin-Eau Claire study finds evidence that women put more effort into their clothing and grooming during their most fertile periods.

"Near ovulation, women dress to impress, and the closer women come to ovulation, the more attention they appear to pay to their appearance," said Martie Haselton, the study's lead author and a UCLA associate professor of communication studies and psychology. "They tend to put on skirts instead of pants, show more skin and generally dress more fashionably."

When four forensic pathologists tell physiologists about the deaths that puzzle them, they will do so with the hope of sparking laboratory research to help define the cause of these deaths and prevent more of them.

Medicinal plants are an integral part of African culture, one of the oldest and most diverse in the world. In South Africa, 21st century drug therapy is used side-by-side with traditional African medicines to heal the sick. While plants have been used in African medicine to treat fever, asthma, constipation, esophageal cancer and hypertension, scientific analyses of the purported benefits of many plants is still scant.

In order to comprehend the continuous stream of cacophonies and visual stimulation that battle for our attention, humans will breakdown activities into smaller, more digestible chunks, a phenomenon that psychologists describe as "event structure perception."

Event structure perception was originally believed to be confined to our visual system, but new research published in the May issue of Psychological Science, a journal of the Association for Psychological Science, reports that a similar process occurs when reading about everyday events as well.

Elderly men and women who consumed higher levels of calcium and vitamin D are significantly more likely to have greater volumes of brain lesions, regions of damage that can increase risk of cognitive impairment, dementia, depression and stroke.

Duke University scientist Dr. Martha Payne reported this finding at Experimental Biology 2007, in Washington, DC.

A compound derived from green tea greatly diminished the neurotoxicity of proteins secreted by the human immunodeficiency virus, suggesting a new approach to the prevention and treatment of HIV-associated dementia, also known as AIDS dementia complex. The disorder is the most severe form of HIV-related neuropsychiatric impairment.

Electromagnetic fields do not pose a health hazard to workers in the electrical energy supply industry, suggests a large study of 28,000 people, published ahead of print in Occupational and Environmental Medicine.

Exposure to low frequency electromagnetic fields of 50 to 60 Hz has been implicated in an increased risk of leukaemia, brain and breast cancers.

The researchers used the health and employment records of more than 22,000 utility workers at 99 different electrical energy supply companies in Denmark.

Sleep remains one of the big mysteries in biology. All animals sleep, and people who are deprived of sleep suffer physically, emotionally and intellectually. But nobody knows how sleep restores the brain.