Washington, Nov 6 : Rumours are abuzz that actress Emma Watson, who plays Hermione Granger in the Harry Potter films, is dating a young Australian drama student.

The 18-year-old actress is said to have met Angus Willoughby, 19, while studying at the Royal Academy of Dramatic Arts in London, reports the Telegraph.

According to the West Australian newspaper, the pair is now planning a holiday in Willoughby''s home town of Perth, Australia, and a tour of the region''s beaches and wineries.

Washington, November 6 : A PhD student at Sydney's Garvan Institute of Medical Research has made a significant advance towards understanding exactly how insulin prompts fat and muscle cells to absorb glucose, a problem that has puzzled researchers for over 50 years.

"Since the 1920s, when Banting and Best discovered insulin, scientists have been battling to discover how it actually works," said Professor David James, head of Garvan''s Diabetes Program.

"Then along comes Freddy Yip, doing his PhD, who unveils a completely novel action of insulin, one which we believe plays a fundamental role in glucose uptake, a process that is defective in Type 2 diabetes," he added.

London, Nov 6: A team of researchers has shown that a molecule called Cyclophilin D (CypD) interacts with amyloid beta (Aâ) peptide, the main constituent of plaques in the brains of Alzheimer''s patients, within the mitochondria.

The study involving a transgenic mouse model of Alzheimer’s disease suggests that blocking CypD and development of surrounding mitochondrial targets may be viable therapeutic strategies for the prevention and treatment of Alzheimer’s disease, reports Nature.

Washington, Nov 6 : Angelina Jolie is using her kids'' video game console to shed her babyweight.

The actress has been struggling to get back in shape after giving birth to twins Knox and Vivienne back in July (08).

Now, she has turned to her kids’ video games to reclaim her former figure.

In fact, her eldest son Maddox, seven, has shown her the way - by teaching her all about virtual Pilates on his Nintendo DS computer.

Washington, Nov 6: Alaska Governor Sarah Palin has dismissed reports that she is a ‘diva’, insisting that she never made unreasonable demands on the McCain campaign during her time as a vice presidential nominee.

Speaking to TV reporters in Phoenix, Palin said that rumours of tension between her and Republican nominee John McCain and members of his staff were ‘absolutely false.’

Washington, Nov 6 : Women who have a history of migraine headaches are at a significantly lower risk of breast cancer, a new study has found.

The findings have been reported in the November issue of Cancer Epidemiology, Biomarkers and Prevention by Christopher I. Li, M. D., Ph. D., and colleagues at Fred Hutchinson Cancer Research Center.

"We found that, overall, women who had a history of migraines had a 30 percent lower risk of breast cancer compared to women who did not have a history of such headaches," said Li, a breast-cancer epidemiologist and associate member of the Hutchinson Center''s Public Health Sciences Division.