Is it true that if you bump your head personality could change?

It's true that a bump to the head, particularly a severe one, can cause changes in personality. This phenomenon, known as acquired brain injury (ABI), can disrupt the normal functioning of the brain, including the areas involved in personality traits and behaviors.

The effects on personality can vary depending on the severity of the injury and the specific areas of the brain affected. Some common personality changes associated with ABI include:

1. Impulsivity: The person may become more impulsive, making decisions without considering the consequences.

2. Lack of Inhibition: They might display reduced inhibitions, leading to socially inappropriate behaviors or saying things without thinking.

3. Emotional Instability: Mood swings and emotional outbursts can become more frequent.

4. Difficulty with Concentration: Attention deficits and difficulty concentrating may emerge.

5. Memory Problems: Issues with memory and recalling information can occur.

6. Reduced Empathy: Understanding and relating to others' feelings may become impaired.

7. Disinhibited Behavior: Individuals may engage in reckless or socially inappropriate actions.

8. Aggressive Tendencies: Increased irritability and aggression may manifest.

9. Impaired Judgment: Making poor decisions and showing poor judgment can become noticeable.

10. Altered Moral Reasoning: Changes in moral values and ethics may occur.

It's essential to note that not all people who experience a head injury will develop these personality changes. The nature and extent of the personality impact depend on the individual, the severity of the injury, and the location of the brain injury. If someone is displaying significant personality changes after a head injury, it is important to seek professional medical and psychological evaluation to assess the situation and provide appropriate treatment.