which is more important, brain or heart?

Clinically speaking, both of these are vital organs of the human body! Heart pumps life blood into the brain, without which the brain cannot function, and brain sends impulses to the heart which makes it beat. But if you ask me, heart is much more important than the brain because no matter how intelligent you are, you always need a heart to feel and be human. Heart is the only organ which makes us what we are, or else we would have been transformed into machines long ago!

mixed from both of it

I am sure both are very important as short of either one we wouldn't be able to live:)