In almost every muscle of your body, there's a special receptor called pieso too. The discovery of this actually won the most recent nobel prize. When a mechanical force pressing on your skin or a stretch is in the presence of this pieso receptor, that receptor opens and starts the signal. These women whom i met who lack the piazzo receptor, they can't feel a lot of light touch. We don't know how sharp pain enters our bodies. Wio, those kinds of touch are different.