In a YouTube video, Wilder Rowen can be seen illustrating various handwashing techniques like "pray," "pet the dog," "butterfly," "milk the cow," "church steeple," "rock, paper, scissors" and "spiders."
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The boy said a doctor taught him how to wash his hands.
WATCH: The right way to wash your hands
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How to Wash Your Hands
Dr. Mark Loafman, chairman of Family Medicine at Cook County Health, explained the proper technique and duration for washing your hands to prevent the spread of illnesses includes scrubbing for at least 20 seconds, which happens to be the amount of time it takes to hum the "Happy Birthday" song twice.