What exactly did it go through to become like this

A drastic change in a person's personality or behavior is usually triggered by major life events, long-term psychological stress, traumatic experiences, and other factors, which may be accompanied by psychological problems such as depression, anxiety, or post-traumatic stress disorder. These types of changes are mainly triggered by sudden trauma, chronic stress accumulation, breakdown of interpersonal relationships, physiological disease effects, material dependence, and other factors.

1. Sudden trauma

Encountering acute trauma such as natural disasters, violent events, or accidents may directly lead to personality disintegration or emotional numbness. Patients with post-traumatic stress disorder often exhibit symptoms such as avoidance behavior and emotional flashbacks, and some may cope with insecurity by changing their behavior patterns. It is recommended to gradually recover through post-traumatic cognitive-behavioral therapy combined with stabilization techniques.

2. Chronic stress accumulation

Long term exposure to high work pressure, economic difficulties, or family conflicts can cause continuous secretion of cortisol, which can alter the function of the prefrontal cortex in the brain. In this state, it is easy to develop negative cognitive biases, manifested as sudden apathy or irritability. The emotional exhaustion caused by excessive overtime in the workplace requires stress management training combined with mindfulness practice to improve.

3. Relationship breakdown

The termination of important relationships such as divorce and the rupture of close friends may lead to attachment system disorder. Betrayed individuals often exhibit paranoid tendencies or social withdrawal, and some individuals reconstruct their self-identity through extreme changes in appearance or lifestyle habits. Group psychotherapy and attachment repair techniques are helpful for such situations.

4. Physiological Disease Effects

Organic diseases such as thyroid dysfunction and brain tumors can directly lead to personality changes. Early stages of Alzheimer's disease may result in decreased judgment and emotional fluctuations, while patients with multiple sclerosis are prone to pathological laughing or crying. This type of situation requires neurological examination to rule out physiological abnormalities.

5. Substance dependence

Long term alcohol or drug abuse can damage the prefrontal cortex, leading to impulse control disorders. Benzodiazepine drug dependence may lead to abnormal aggressive behavior, and methamphetamine abusers often experience delusions of persecution. Emotional instability during withdrawal requires professional institutions to provide medication replacement therapy.

When you notice a completely different transformation in someone around you, you should avoid directly questioning or blaming them. Create a safe environment to guide them to express their feelings, and accompany them to the psychological department for treatment if necessary. Regular sleep, moderate exercise, and artistic expression can all help regulate emotions. For major psychological trauma, it is recommended to receive systematic psychological treatment. Early intervention can effectively prevent the deterioration of the situation, but the process of change often requires months or even years of sustained effort.