Researchers found that one in seven adolescents believe that it is highly likely that they will die before age 35, and this belief predicted that the adolescents' would engage in risky behaviors.

Burrowing frogs can survive buried for several years without food or water. Scientists have discovered that the metabolism of their cells changes radically during the dormancy period allowing the frogs to maximize the use of their limited energy resources. This discovery could prove to have important applications in the long term for treating energy-related disorders such as obesity.

Babies born by Caesarean section experience changes to the DNA pool in their white blood cells, which could be connected to altered stress levels during this method of delivery. It is thought that these genetic changes, which differ from normal vaginal deliveries, could explain why people delivered by C-section are more susceptible to immunological diseases such as diabetes and asthma in later life, when those genetic changes combine with environmental triggers.

Engineers are working on a new type of body armor made from cement. The new vests will combine super-strong cement with recycled carbon fibre materials to make a material tough enough to withstand most types of bullets.

The risk of cancer possibly increases if patients with diabetes use the long-acting insulin analogue glargine instead of human insulin. Scientists analysed the data of almost 130,000 patients with diabetes in Germany who had been treated with either human insulin or the insulin analogues lispro, aspart or glargine between January 2001 and June 2005.

Controlling road traffic in congested areas is difficult to say the least, a point to which any drive-time urban commuter might testify. An organic approach to traffic lights, might help solve the problem and avoid traffic jams and gridlock, according to new research.

The histamine-3 receptor is important in terms of alcohol-related behavior, and a drug affecting that receptor may have qualities that alter alcohol-related behavior.

Scientists can now describe the highest resolution three-dimensional structure yet of a membrane protein, in this case of a protein channel known as an aquaporin that regulates water flow into and out of yeast cells.

Some patients with large tumors on their larynx can preserve their speech by opting for chemotherapy and radiation over surgery to remove the voice box. A new study found that a single round of chemotherapy could identify those patients most likely to benefit from this approach.

Researchers have uncovered some of the central characteristics of genes underlying mental retardation. The research shortens the list of genes whose changes lead to this disorder from thousands to several dozen.