How to do CPR

To do proper CPR, you have to do it fast enough to keep the blood pressure up but slow enough for the heart to refill with blood between beats.

So how to learn the proper rate without a metronome? sing a song to get it right. And scientists say it works:

Their findings, published online in the British Medical Journal, confirmed Nellie – already used by some trainers – was the more effective song...



the problem? The song might distract those doing CPR, so the scientists
..called for research into other songs that might work, including Another One Bites the Dust by Queen or Achy Breaky Heart by Billy Ray Cyrus.

A previous study by the University of Illionois medical school found the Bee Gees disco anthem Stayin' Alive was, at 103 beats per minute, close to the ideal rhythm.