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Research suggests that it takes "gross" messaging to get undergraduate students to wash their hands more frequently after going to the bathroom.

Adult cells, from both humans and mice, can be converted into embryonic stem cell-like cells using a single virus to insert four reprogramming genes into the cells' genomes. Previous reprogramming approaches have relied on four separate viruses, one virus for each gene, to deliver the genes to cellular nuclei. Because this new method inserts the genes in only one place, it is less disruptive to a cell's genome.

A father's age is associated with decreased social abilities in boys, according to new research.

A possible new therapeutic target for pancreatic cancer, the most lethal form of human cancer, has been identified in the proteins whose DNA recipe comes from the gene, "Seven-In-Absentia."

A vigorous 60-minute workout on a treadmill affects the release of two key appetite hormones, ghrelin and peptide YY, while 90 minutes of weight lifting affects the level of only ghrelin. The research shows that aerobic exercise is better at suppressing appetite than nonaerobic exercise and provides a possible explanation for how that happens. This line of research may eventually lead to more effective ways to use exercise to help control weight.

Two separate meta-analyses of clinical trials from around the world that tested tamoxifen against aromatase inhibitor drugs in postmenopausal women with early breast cancer have each reached the same conclusion: aromatase inhibitors are more effective in preventing breast cancer from coming back. Patients using aromatase inhibitors had more than a 3 percent lower cancer recurrence 6-8 years after diagnosis, compared to women using tamoxifen alone.

Using stem cell lines not typically combined, researchers have designed a new way to 'grow' bone and other tissues. The work takes a new approach: rarely have mesenchymal and hematopoietic cells been delivered in combination for the healing of defects and the treatment of diseases -- partially due to the separate research communities in which these two cell groups are studied.

Researchers have developed a new form of psychotherapy that has been shown to have the potential to treat more than eight out of ten cases of eating disorders in adults, a new study reports.

Patients with the skin disease psoriasis appear more likely to have higher levels of leptin (a hormone produced by fat cells that may contribute to obesity and other metabolic abnormalities) than persons without psoriasis, according to a new report.

Scientists have for the first time developed a technique for generating novel types of rat and human stem cells with characteristics similar to mouse embryonic stem cells, currently the predominant type of stem cells used for creating animal models of human diseases in research. The technique potentially provides scientists with new sources of stem cells to develop drugs and treatments for human diseases.