Old story about tea is one of BBC's 'most popular'

Here's the BBC News website's 'most popular stories now' widget from the start of the week:

BBC News Most Popular Stories Now widget
What's interesting is that story eight, "Tea 'healthier' drink than water", actually dates from August 2006:

BBC News article on the health benefits of tea

For it to resurface as one of the Beeb's most popular stories three years after it was written shows the longevity that web content can have.

The story has been flying around on Twitter quite a lot recently, so I wonder if the micro-blogging site is responsible?