The significance of the head trauma will usually dictate long-term effects, which could include: memory loss, headaches, vision impairment, dizziness, seizures, difficulty with verbal communication, balance struggles, fatigue and mood swings. In addition, the impacted area of the brain can determine what the results. For instance, the frontal lobe (forehead) controls reasoning, judgement and impulse control. An injury to the left side of the brain can lead to long-term changes to language and speech. A right-brain injury causes a disconnect in processing visual information.