It so happens that Exxon Mobil has been funding research into this problem at Stanford University for almost a decade now without a major breakthrough.

FORBES: Natural Gas Equals Energy Independence And Economic Rejuvenation

One woman I encountered in my research, Amanda, faced this problem when she began a new job as a vice president at a Manhattan ad agency.

WSJ: The Tyranny of the Queen Bee

One problem this research faces is that in order to determine whether the nerves are regenerating, they have to actually cut out a piece of spinal and then cut that into ultra-thin slices, which are then placed under a microscope.

FORBES: Scientists Make The Spinal Cord Transparent