Washing your hands seems like common sense, especially if they're dirty. But forget about what we know now about germs, viruses and bacteria. Forget how gross the feeling of gritty dirt is in your mouth because your hands were in the mud when you picked up that apple to take a bite. Forget about changing a baby's diaper and then rubbing your eyes and getting pink eye. Instead, let's focus on how society in general went from cleanliness to dying from infections, back to cleanliness. On this episode, we take a look at the uncommon history behind one of the most common things we know – washing our hands and bodies. 

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