For those willing to make the sacrifice of flesh and expense, the body could be "upgraded" to allow for additional skills and abilities. Some were very innocuous, the Shepherd chip issued to military service members for instance. Others involved modifying the limbs and internal systems of the potential patient. As with everything in the galaxy, this came at a potential price, in credits and in the potential loss of self. Someone could easily go too far in attempting to be "more human than human." Artificial organs could be implanted by droids such as the DD-13 medical assistant droid.