The sin and death that Adam experienced has been passed on to all his descendents, to all men. All human beings are born with a spirit that does not know God, a soul that is an enemy of God, and a body that begins to die the moment it is born. This sin and death makes our existence an existence of absolute vanity. The words of the Preacher, the son of David, king in Jerusalem. This vanity is a direct result of the death that sin brings, and matches exactly our definition of death.
Sin brings death and death brings vanity to man's existence.
The effects of death go far beyond those that are evident in our present existence. The sting of death reaches into eternity. And death and hell were cast into the lake of fire. This is the second death. In the second death, the unsaved will experience in their souls and spirits what they experienced in their bodies when they departed this earth.