system
Given the following post, respond as if you're commenting on Reddit:
human
How did Humans in the past know that a specific organ does this specific function in the body?

How were we able to discover that the brain is the organ that controls most of the activities of the body? 
Without the present technology that we have, How were people in the past able to tell that brain is a most important organ? (Was it because they observed some person got hurt on the head and his whole body and mental health got affected ? )
Because before technology 
Just not the brain but also other organs..
And more important than this , How were they able to come up with medicines ? How did they know that this specific herb would cure this disease?
gpt
Until the last few hundred years, they basically didn't know.

For example, the ancient Egyptians thought that the brain was a useless organ, and during the mumification process, threw it away, but kept all other internal organs in canopic jars. They thought the *heart* was the seat of conciousness.