"To resuscitate someone who has suffered a cardiac arrest, you need to make between 90 and 100 chest compressions per minute, and, according to a new study in the BMJ, running through the song Nellie the Elephant in your head while you do it significantly helps. Unfortunately, the team of researchers, led by Malcolm Woollard, professor in pre- hospital and emergency care at Coventry University, also found the song distracted people from maintaining an adequate depth of compression (equally important as speed) and so doesn't recommend that first aid trainers use the song to teach CPR"
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