The brain.
Brains can be extremely complex. Despite rapid scientific progress, much about how brains work remains a mystery. Where do dreams come from? Your brain is in charge of these things and a lot more. complexity isn't pain. the brain is our primary control centre.
It’s not true that humans only use 10% of their brains; each part of the brain has a purpose.It's not your brain that's hurting when you get a headache.
