What could cause unusual behavior?

There are many causes of unusual or strange behavior, including medical and psychiatric illnesses. Two of the more common medical causes are: Delirium — Sudden or quick onset of reduced consciousness, awareness, perception, or thought that may be a symptom of a medical illness such as brain or mental dysfunction.

Can a person change behavior?

Anyone can make an effort to alter specific habits or behaviors. Even some aspects of attitude and personality can change over time… with some dedicated effort. Yet while people can change, not everyone does. How can you tell if someone will ever really address certain behaviors?

What causes sudden changes in personality and behavior?

These changes in personality and behavior can be caused by physical or mental health problems. People may have more than one type of change. For example, people with confusion due to a drug interaction sometimes have hallucinations, and people with mood extremes may have delusions.

When does a change in behavior become an issue?

If it becomes consistent and unusual and gradually separates itself from how the person had previously acted, it becomes an issue. Personality changes will become an issue. Personality changes is an alteration in how one used to think, feel, and behave. Usually, an external stimulus brings about this turnaround.

Is it normal for a person to change their personality suddenly?

While a gradual personality change isn’t unusual, a sudden change can be caused by an injury or illness. Look for the following signs to determine if strange or unusual behavior is an emergency situation:

Can substance abuse cause a sudden change in personality?

Substance Abuse. In some instances, sudden personality change is the result of substance abuse. Alcohol abuse and alcoholism can cause both acute and chronic side effects, including personality change.