We are humans relearning to wash our hands. Wet hands transfer bacteria more easily than dry hands. Washing your hands with soap and water is one of our cheapest forms of infection control, and also one of the most effective. Proper handwashing means scrubbing hands with soap and water for at least 20 seconds, according to the Centers for Disease Control and Prevention.

You'll also want to wash hands happy birthday your hands more during flu season and if you're coughing and sneezing a lot, even if you are good about coughing into your elbow. Lather your hands, including the backs, between your fingers, and under your nails and scrub for at least 20 seconds.

It is so important that today (March 20) Google honored Ignaz Semmelweis , the German-Hungarian physician and scientist who popularized how important hand-washing is in 1847 by demonstrating with his work that cleaning hands drastically reduced the number of deaths of women after childbirth.

Many diseases and conditions are spread by not washing hands with soap and clean, running water. After you've dried your hands, use the towel to turn off the water and put the towel in the laundry, or rubbish if it is disposable. Washing your hands is all about putting up a road block for germs.

There's a storybook, a sink poster, colouring-in sheets, character cut-outs, and videos about how and when to wash their hands. Hands are villages to thousands of germs—including bacteria and viruses. Health experts say you need to wash your hands for 20 seconds with soap and water to get them clean, CNET reported Songs like Happy Birthday" give you the 20-second timer needed.