When I have good head posture I feel the blood flowing to the front of my head(I assume the prefrontal cortex) yet I start to feel very confident and impulse. If my head posture is bad and I'm looking down I start to think more and am less impulsive. Why is that when the prefrontal cortex is supposed to control actions? Impulsive and dumb people in general have great head postures yet they usually don't have a developed prefrontal cortex, if anything they have a slant there(also called a slope forehead).