I get how soap works by breaking down outer layers of cells, especially in viruses and bacteria, which is how it protects us (correct me if I’m wrong). My question is why does everyone, including surgeons scrubbing in for surgery, massage the soap around their hands and arms? Couldn’t we just apply the soap, wait 20 seconds, then rinse it off? Maybe it’s a surface area thing, making sure soap is applied everywhere?
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Imagine you have a sheet of dirty leather you want to clean. Now, don’t allow that leather to lay flat. Instead, let it collapse and create a bunch of folds.
Now pressure wash it as it lies.
It’s clean, right? Until you stretch the leather out and reveal all the dirt that was covered by the material itself.
That’s how skin works, although at a much smaller scale.
Yes you COULD let it sit and it’d probably be alright. But rubbing send washing ensures all the folds get disturbed and the entire surface is cleaned.
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