If you are a cerebral person, no one would ever call you a drama queen. You make decisions using your intelligence and cold, hard facts, instead of your emotions.
The word cerebral gets its meaning from cerebrum, which is Latin for "brain." Cerebral people use their brains instead of their hearts. The cerebrum is a particular section of the brain, and anything related to that part is also cerebral, like in medicine. A cerebral hemorrhage, for example, means a hemorrhage has occurred in the brain — a phrase you'd never want to hear coming from a doctor.