system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: if technology and medicine is so advanced, why is childbirth still extremely painful?

of course it has gotten better than it was in the past, and expecting people are provided with the most comfort they can get. but why is it so painful like why can't they just numb the body in a way that doesn't interfere with the baby. in the future can it ever be painless?
gpt
Epidural exists and is in use. Every anesthetic use increases the risk of procedure; and you can’t have natural birth if fully put under. The pain exists well…because we evolved walking upright which narrowed human pelvis, and our brains are almost too big for it; so human babies get born much earlier than other primate babies because if they were any more developed, the birth would become even more hazardous and deadly. So we’re contending with our anatomy not being great for giving birth….