Scientists believe a common heart medicine may be able to banish fearful memories from the mind.
Brothers plan 24 hours atop Everest
Three Nepalese brothers are to try to break a world record by staying on top of Mount Everest for 24 hours, reports the BBC's Charles Haviland.
Polar bear skull defies DNA test
A scientist says she has been unable to extract DNA for analysis from ancient Scottish bear remains.
Henry VIII love letter exhibited
A letter from the womanising monarch to his second wife Anne Boleyn is to go on display for the first time in London.
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