system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why humans are relatively hairless?

What happened in the evolution somewhere along the line that we lost all our hair? Monkeys and neanderthals were nearly covered in hair, why did we lose it except it some places?

Bonus question: Why did we keep the certain places we do have? What do eyebrows and head hair do for us and why have we had them for so long?

Wouldn't having hair/fur be a pretty significant advantage? We wouldnt have to worry about buying a fur coat for winter.

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edit: thanks for the responses guys!

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edit2: what the actual **** did i actually hit front page while i watched the super bowl

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edit3: *stop telling me we have the same number of follicles as chimps, that doesn't answer my question and you know it*
gpt
Hairlessness allows us to regulate our body heat more easily. One of the main advantages humans have over other animals is our ability to run long distances, and hunt animals by tiring them out. If we were covered in fur, we would simply heat up too quickly and not be able to run for long.