Fear of death is a strange one, but from a biological position quite obvious. However, I don't think we fear death for biological reasons these days, it is more about the uncertainty or the sense that we will lose what we have worked a life to gain. The question shouldn't be about the loss, it should ask if what we work for is worth it considering we cannot take it with us. For me, the answer is that what I work toward isn't for me, it is for those who will live on past me and benefit from it.