Fans crowded into the Don Valley Stadium in Sheffield to watch Jessica Ennis win the 800 metres in the heptathlon, confirming a gold in the event.
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A cheap over-the-counter painkiller taken by millions of people in Britain every day could have the hidden benefit of slowing down ageing.
Some four million Brits are expected to fly out of the UK over the festive period, along with many more using roads and railways.
Scientists believe they may have found the key to fighting HIV - and it rests in the immune system of llamas.