50 shades whiter: What you should know about teeth whitening

The effect of teeth whitening was discovered quite by accident. In the past, dentists tried to treat gum disease with mouth rinses containing hydrogen peroxide. They noticed teeth became whiter over time following use of ...

Genetically engineered virus kills liver cancer

A genetically-engineered virus tested in 30 terminally-ill liver cancer patients significantly prolonged their lives, killing tumours and inhibiting the growth of new ones, scientists reported on Sunday.

Drug used to treat cancer appears to sharpen memory

Can you imagine a drug that would make it easier to learn a language, sharpen your memory and help those with dementia and Alzheimer's disease by rewiring the brain and keeping neurons alive?

Black Death origin mystery solved... 675 years later

A deadly pandemic with mysterious origins: it might sound like a modern headline, but scientists have spent centuries debating the source of the Black Death that devastated the medieval world.

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