Don't worry, be (moderately) happy, research suggests

Could the pursuit of happiness go too far? Most self-help books on the subject offer tips on how to maximize one’s bliss, but a new study suggests that moderate happiness may be preferable to full-fledged elation. more  

Camera in a pill offers cheaper, easier window on your insides

What if swallowing a pill with a camera could detect the earliest signs of cancer? The tiny camera is designed to take high-quality, color pictures in confined spaces. Such a device could find warning signs of esophageal cancer, the fastest growing cancer in the United States. more

Popular arthritis drug may disrupt heart rhythm

Celebrex, a popular arthritis drug that blocks pain by inhibiting an enzyme known as COX-2, has been shown in laboratory studies to induce arrhythmia, or irregular beating of the heart, via a novel pathway unrelated to its COX-2 inhibition. more  

World's aging population to defuse war on terrorism

Changing demographic trends will impact the future of international relations, according to the latest issue of Public Policy & Aging Report (PP&AR). Several hotbed areas in the world that offer the motive and opportunity for political violence are due to stabilize by the year 2030. more

Marijuana withdrawal as bad as withdrawal from cigarettes  

Research by a group of scientists studying the effects of heavy marijuana use suggests that withdrawal from the use of marijuana is similar to what is experienced by people when they quit smoking cigarettes. Abstinence from each of these drugs appears to cause several common symptoms, such as irritability, anger and trouble sleeping - based on self reporting in a recent study of 12 heavy users of both marijuana and cigarettes. more

Adult stem cell application effective in treatment of peripheric vascular disease  

Multipotent adult progenitor stem cells extracted from bone marrow, and known as MAPCs, have proved to be effective in the regeneration of blood vessel tissue and also in muscle tissue when treating peripheric vascular disease. This was the result of research undertaken with mouse models by two research groups, one by the University Hospital of Navarra jointly with the Centre for Applied Medical Research (CIMA), also of the University of Navarra, and the other by the Centre for Molecular and Vascular Biology atthe Catholic University of Leuven (Belgium). more

Early promising results in malaria vaccine trial in Mali

A small clinical trial conducted by an international team of researchers in Mali has found that a candidate malaria vaccine was safe and elicited strong immune responses in the 40 Malian adults who received it. The trial was the first to test this vaccine candidate, which is designed to block the malaria parasite from entering human blood cells, in a malaria-endemic country. Based on these promising results, the research team is now conducting trials of this vaccine in 400 Malian children aged 1 to 6 years. Malaria is a leading killer in Africa and other developing countries, claiming more than 1 million lives each year, most of them children. more

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