My dad had Restless Leg Syndrome so bad that he couldn’t sleep. We tried putting the Ivory Soap at the bottom of his bed, and to our amazement, the restlessness subsided. It was the only “remedy” that worked for him. There must be something about the aroma from the soap that soothes the nerves. Sometimes we used more than one bar.
Not too surprising, though: my wife puts Vicks on the soles of her feet -- and it stops her from coughing!
There is still much about the human nervous system that we don't know or understand...