Question: what is the most complex part of the brain and whats it for?

Jen Todd Jones answered on 12 Mar 2013:

In my opinion the most complicated part of the brain is the frontal lobe (at the front, just above your eyes) – no other animal in the world has it and we think it’s what makes us human and separates us from monkeys. It’s responsible for singing, understanding jokes, planning in the future, imagination and remembering how to interact in society.