i dont know,,,but i think someone can hold on, if only for a few minutes if they dont want to die,,, my sister-in-law,,, was dying, she asked for the priest, she was weak, and in a lot of pain,, but did not want to die,, while my niece was swabbing out her mouth that was dry,,, she took all her energy and bit the little wooden swab in hafe,,, she was angry i believe,,,, and then she closed her eyes and died,,,