Performing CPR? Humming the Macarena could help

The song's 103bpm tempo was found to help people perform chest compressions at the correct rate

Humming the Spanish dance song Macarena could save lives, according to research that suggests it helps people administer chest compressions at the correct rate while performing CPR.

The study compared the rate and depth of compressions 164 students performed on a mannequin over the course of two minutes. One group were given no external beat, one group were given a smartphone app that featured a metronome, and one group were asked to play Macarena in their head.