In the ancient Egypt, the Egyptians believed about afterlife; when people died, they born again and live second life in another place. But, I do not believe of afterlife.
First of all, there're less possibility to death body to revive in other places. Basically, we need cells that is provide and make our energy and do many important tasks which are the our body needs to survive or live. Also, the cells are the most small units which are maintaining our body. And we need many organs, too. Without these things it is hardly to revive to new creature.
Secondly, there are no reasons that can describe the possible of afterlife. It means, there are no points to believe afterlife. I think that just believe of something without any explaination that can support ideas is not very proper behavior to believe in something.
These are the reasons of why I didn't believe of afterlife.