What was Phineas gauge debilitated by?

Phineas Gage was debilitated by a severe brain injury caused by an accidental explosion that drove a steel rod through his skull in 1848. This injury significantly damaged his frontal lobes, leading to drastic changes in his personality, behavior, and cognitive functions. Although he survived the accident, Gage experienced difficulties in social interactions, decision-making, and impulse control, highlighting the crucial role of the frontal lobes in personality and behavior.