Yes, overwhelmingly. My grandmother had a brain tumour, and during the operation for its removal, her brain stem was severed. She was left in a vegetative state, and yet she fought death. It was handed to her on a platter several times & everytime she pushed through it. We all said it was because she would never die before her husband, she was very jealous & would always accuse him of being attractive to other women. She passed away 1 month after my grandfather.

Hope... without it you loose the will to fight.