Washington, October 1 : Johns Hopkins researchers say that a popular prostate cancer treatment called androgen deprivation therapy may encourage prostate cancer cells to produce a protein that makes them more likely to spread throughout the body.

London, Oct 1 : A daily dose of fear is just what the doctor ordered for kids, insists a leading headmaster in the UK.

Anthony Seldon, the headmaster of Wellington College, insists that kids are too protected these days, and as a result are missing out on things, as they are not allowed to conquer their fears by confronting them.

Speaking at The Dangerous Event for Boys, Dr Seldon insisted that both boys and girls needed to start pushing themselves so that they can experience the 'challenge of adventure'.

London, Oct 1 : Eating a daily dose of dark chocolate a day may help reduce chronic fatigue say researchers from Hull York Medical School, UK.

London, October 1 : Israeli scientists have developed a nasal spray packed with viruses called bacteriophages, which can ease the devastating symptoms of Alzheimer's disease.

Washington, Oct 1 : Young children who spend two or more hours a day in front of the idiot box are at an increased risk of developing behavioural problems and poor social skill, warn researchers at the Johns Hopkins Bloomberg School of Public Health.

The finding is based on an analysis of data for 2,707 children between 2.5 to 5.5 years of age collected from the Healthy Steps for Young Children national evaluation by the researchers.

London, Oct 1 : Researchers have discovered a regulatory protein, called CTLA-4, which they believe is a second molecular “switch” responsible for turning off the immune system’s response against HIV.

The study in which the protein was discovered was conducted by researchers at the Partners AIDS Research Center at Massachusetts General Hospital (PARC-MGH) led by Dr Bruce Walker.

Last year members of the same team identified a molecule called PD-1 that suppresses the activity of HIV-specific CD8 T cells that should destroy virus-infected cells.