system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Our bodies can create an embryo that assembles into a young body full of new cells and repeat the process. Why can't our bodies skip the embryo step and just renew itself?
gpt
Your body renews itself every day. In fact you are a completely new set of cells every 7 years. The issue that we have are small errors as cells divide and renew over time eventually lead to the numerous problems of aging.