In this chapter, we learn that people suffering from long-term depression are not fit to receive a bone marrow transplant. However, if cha woo-bin were suffering from the same condition and was consuming the same amount of prozac, he would be able to donate his own bone marrow a month before his death. The doctor would have to wait until the patient showed signs of recovery from the effects of prozac before giving him the bone marrow. In fact, it takes about six weeks for the patient's recovery to show any signs of improvement. So, it's not like he's going to be cured of his depression by donating his own body to someone who's been suffering from it for a month. But if he were, he'd still be in the dark about what happened to his body.