The Three Peaks Challenge was in memory of their friend, Wayne Wilson, 26, from Cricklade, who died of leukaemia in January.

BBC: Wiltshire team scales wrong mountain in peaks challenge

That made the memory challenge exponentially harder.

FORBES: Learning Should Fit the Child

But in a world where the UN predicts that by 2010, one in five people will be over 60, and failing memory is likely to become an important challenge for society, more rigorous research into the link between music and memory is much needed, says the team.

BBC: Beatles' tunes aid memory recall