A new study, published in the journal Occupational and Environmental Medicine, found that high job demands and perception of poor support were more closely related to sick-building symptoms than were the physical conditions of the workplace. Researchers say this suggests that "sick building syndrome" may in fact be a misnomer.

Many of America's teenagers are going through life sleep-deprived, according to a poll by the National Sleep Foundation. In a survey that interviewed 1,602 adults caregivers and their children, only 20% of kids between the ages of 11 and 17 were getting the recommended 9 hours of sleep on school nights; more than 1 in 4 reported sleeping in class.

Growing concern that the world is becoming increasingly vulnerable to flu pandemic has spurred new approaches in biotech to develop innovative weapons to fight influenza viruses. Drug companies are working on technologies that attack flu from several directions that include preventing viral growth by shutting down the proteins that allow flu viruses to replicate; tuning up the immune system with new drugs that activate immune system genes, and through a new monoclonal antibody that targets infected cells, to keep ahead of drug-resistant viral strains.

The Food and Drug Administration says the cancer-causing chemical benzene was either not found or was present at levels below the federal limit for drinking water in the vast majority of soft drinks sampled. "Although the results to date are preliminary, they do not suggest a safety concern," wrote Robert E. Brackett, director of the Center for Food Safety and Applied Nutrition, in a letter released Tuesday.