Perhaps that explained why it was often easier to call on the Force to heal someone other than oneself. Extending life, then, could hinge on something as simple as being able to induce midi-chlorians to create new cells; to subdivide at will, increasing their numbers into the tens of thousands to heal or replace damaged, aging, or metastatic cells. Midi-chlorians had to be compelled to serve the needs of the body; to bestow strength when needed; to overcome physical insult, or prevent cells from reaching senescence.

