Adam's sin brought horrifying consequences down on mankind and the world of his day. We are still under the penalty for Adam's rebellious act against God.
"And when the woman saw that the tree was good for food and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also to her husband with her; and he did eat" (Genesis 3:6).
Genesis 3:14-19