We have usually quite strong memories of past events like an exciting holiday or a pleasant birthday party. However it is not clear how the brain keeps track of the temporal sequence in such memories: did Paul spill a glass of wine before or after Mary left the party? A research group has now provided evidence that sleep not only strengthens the content of a memory but also the particular order in which they were experienced.

Hacked cluster serves up addresses

Lax security at Indiana University appears to have played a key role in highly targeted phishing attack last year that hauled in confidential information on as many as 80 account holders of the school's credit union. The finding, gleaned through public records unearthed by a university student, provides an interesting case study in the resourcefulness phishers bring to their trade.

Doctors need to take concerted action to ensure that people who are at risk of heart disease receive the influenza vaccine every autumn, according to the authors of a new report. Their research shows that influenza epidemics are associated with a rise in deaths from heart disease and that flu can actually trigger the heart attacks that result in death.

The active ingredient in marijuana cuts tumor growth in common lung cancer in half and significantly reduces the ability of the cancer to spread, say researchers at Harvard University who tested the chemical in both lab and mouse studies.

Actually, there are lots of them....

Companies will team up to turn billions of pounds of animal fat into biodiesel for U.S. drivers.