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Today's news headlines from the sources selected by our team:

Why Do People Sleepwalk?

Lack of sleep, genetics, childhood and apnea are some of the causes of sleepwalking.

LiveScience.com, Fri, 09 May 2008 23:57:23 GMT

Video: The Next Step in Cooling Hot Data

Servers run hot. Cooling them down impacts costs, energy sources and Earth's climate.

LiveScience.com, Fri, 09 May 2008 23:57:23 GMT

HIV funding priority shift call

Funding for HIV prevention is being wasted on strategies which have little impact, say US researchers.

BBC News | Health | World Edition, Fri, 09 May 2008 23:04:06 GMT

Europeans get drunk 'to have sex'

Some teenagers and young adults get high on drink and drugs to improve their sex lives, research suggests.

BBC News | Health | World Edition, Fri, 09 May 2008 23:04:06 GMT

Early baby survival 'unchanged'

UK babies born at 23 weeks or earlier are no more likely to survive than they were a decade ago, a study finds.

BBC News | Health | World Edition, Fri, 09 May 2008 23:04:06 GMT

Great tits cope well with warming

Great tits in Britain seem to be adapting to climatic change, scientists report, unlike some other birds.

BBC News | Science/Nature | World Edition, Fri, 09 May 2008 23:11:19 GMT

New batch of walruses gets tagged

Ten of Greenland's walruses are fitted with sat-tags to confirm whether the blubbery beasts migrate to Canada.

BBC News | Science/Nature | World Edition, Fri, 09 May 2008 23:11:19 GMT

White House Warns of Pot-Depression Link

Bush Administration officials have issued a report citing growing evidence of a connection between marijuana use and depression in teens.

WebMD Health, Fri, 09 May 2008 23:18:50 GMT

Banishing Facial Wrinkles With Fillers

Next to Botox, the most popular nonsurgical way to freshen up your looks is with a so-called "soft tissue" filler, often relied on to smooth away the nose-to-mouth line called the nasolabial or nasal labial fold.

WebMD Health, Fri, 09 May 2008 23:18:50 GMT

Younger Age, Faster Breast Cancer Growth

Breast cancers tend to grow faster in younger women, according to a Norwegian study of women aged 50-69.

WebMD Health, Fri, 09 May 2008 23:18:50 GMT

A Faster Way to Detect Heart Attacks

A diagnostic chip tests saliva to determine if someone is having a heart attack.

Technology Review Feed - Tech Review Top Stories, Fri, 09 May 2008 23:11:20 GMT

Social Networking Meets Personal Finance

Web-based startups offer social features that help people make better financial decisions.

Technology Review Feed - Tech Review Top Stories, Fri, 09 May 2008 23:11:20 GMT

Surprising Discovery: Multicellular Response Is 'All For One'

It has been widely assumed that, in single-celled organisms, each cell perceives its environment -- and responds to stress conditions -- individually. Likewise, it had been thought that cells in multicellular organisms respond the same way, but scientists have now discovered otherwise. In studies of the worm C. elegans, they found that authority is taken away from individual cells and given to two specialized neurons to sense temperature stress and organize an integrated molecular response for the entire organism.

ScienceDaily: Latest Science News, Fri, 09 May 2008 23:11:21 GMT

Designer isotopes push the frontiers

Creating rare variants of chemical elements may be the next big thing in nuclear physics.

World Science, Fri, 09 May 2008 23:11:22 GMT

Brain molecules may tell of child abuse

A study has found distinct chemical markings on the DNA of people who took their own lives after suffering maltreatment.

World Science, Fri, 09 May 2008 23:11:22 GMT