Reflexologists believe that the hands are considered to have electrical properties.
The right hand palm being positive and the left hand palm negative.
The right hand also has a reinforcing, stimulating effect while the left has a calming, sedative effect.
The back of each hand is opposite to the palm, so the right is negative and the left positive.
This is important when using reflexology as if the object is to revitalise the body and restore energy flow, then the right hand will have the best effect. The left hand, with its calming effect is best used for pain.