What song should you sing while washing your hands?

Singing "Happy Birthday" twice while washing your hands is recommended because it takes about 20 seconds to sing the complete song. This duration aligns with health guidelines, which suggest that washing hands for at least 20 seconds helps effectively remove germs and bacteria. By timing handwashing with a familiar tune like "Happy Birthday," it encourages proper technique and duration, making the process both effective and engaging.

The other options, while they may be fun to sing, do not provide the same effective timing for handwashing. For example, singing the theme from "Friends" or “Ring Around the Rosie” may not maintain the 20-second duration necessary for thorough cleaning. The guitar solo from "Free Bird" is impractical for handwashing as it is significantly longer and not appropriate for a short duration task like handwashing.