When I think about the human brain and evolution, I don't view a large brain as a good or a bad thing or something that makes humans more capable than other ani

When I think about the human brain and evolution, I don't view a large brain as a good or a bad thing or something that makes humans more capable than other animals or having a competitive edge. It's weird how humans are so often suffering from depression, it seems like a larger brain is more the result of an organ gaining in size for all the bad reasons: anxiety, overthinking, mental illness, etc.