Singing our way to health

What is it about health professionals and singing?

I read this week that once you have squirted soap on your hands as you enter wards in our hospitals that you should sing Happy Birthday twice while rubbing the soap into your hands and so ensure they are thoroughly clean.

Other health-related songs include Nellie The Elephant which should be sung while giving artificial respiration to someone. Or it used to be now. Now, apparently, they are suggesting than you sing Staying Alive (very appropriate!) as it has a faster beat than Nellie the Elephant. Good grief - what next? I fear I will be phoning 999 when  going to someone's aid just to check which key I should be singing in.