Frontal lobe abs. volume (left)

Your frontal lobes are your brain's CEO, managing decision-making, impulse control, planning, and personality. Frontal lobe shrinkage can cause profound changes: apathy, poor judgment, inappropriate social behavior, difficulty planning or organizing, and reduced verbal fluency. Left frontal damage particularly affects speech production and right-body movement, while right frontal damage impacts spatial abilities and left-body movement. Changes often noticed first by family include personality shifts, loss of empathy, or new impulsive behaviors.