Self-destructive behavior is any behavior that is harmful or potentially harmful towards the person who engages in the behavior.
Self-destructive behaviors exist on a continuum, with suicide at one extreme end of the scale. Self-destructive actions may be deliberate, born of impulse, or developed as a habit. The term however tends to be applied toward self-destruction that either is fatal, or is potentially habit-forming or addictive and thus potentially fatal. Self-destructive behavior is often associated with mental illnesses such as borderline personality disorder or schizophrenia.
Self-destructive behavior was first sought in 1895 by Freud and Ferenczi when they first recognized how traumatic experiences affected the development of children. Freud and Ferenczi noticed that children who were raised in an unhealthy environment were more often the ones to act out and take part in self-destructive behavior.
Freud concluded that self-destructive behavior is influenced by ones ego or superego and aggression. Depending on how strongly influenced one is, it will increase the intensity of one's destructive behavior. Guilt is a leading factor for ones superego. For instance, growing up with alcoholic parents can increase one's self-destructive behavior because they feel guilty that they didn't provide them with the help they needed. Since they failed to help their parents overcome these obstacles, they feel as if their parent's failed because of them. Then, they use harming themselves as a coping mechanism to their guilt and failure.
Freud additionally states that the aggression in self-destructive behavior is influenced by a personal motive. Just as cultural and environmental factors can play an important role of this, social factors can as well. For example, say a child was bullied all through middle school, the way to get rid of his pain the child would take action in self-destructive behavior, such as self-harm or yelling.
With investigations Freud and Ferenczi formed a hypothesis that people with self-destructive behavior suffer from "forbidden fantasies, not memories," meaning that since the action isn't supposed to be done, self-destructive people get a stronger drive to take part in these actions.
While theories have changed frequently about how and why self-destructive behavior has developed into what it is, we can conclude the same concepts. No major changes have occurred throughout time. Self-destructive behavior comes in many different forms that varies from person to person. Therefore, superego and aggression is different in every person.
Self-destructive behavior may be used as a coping mechanism when one is overwhelmed. For example, faced with a pressing scholastic assessment, someone may choose to sabotage their work rather than cope with the stress. This would make submission of (or passing) the assessment impossible, but remove the worry associated with it.
Self-destructive behavior may also manifest itself in an active attempt to drive away other people. For example, they may fear that they will "mess up" a relationship. Rather than deal with this fear, socially self-destructive individuals engage in annoying or alienating behavior, so that others will reject them first. 
An important aspect of self-destructive behavior is the inability to handle the stress stemming from an individual's lack of self-confidence - for example in a relationship, whether the other person is truly faithful ("how can they love someone like me?"); at work or school, whether the realization of assignments and deadlines is possible ("there is no way I can complete all my work on time"). Self-destructive people usually lack healthier coping mechanisms, like asserting personal boundaries. As a result, they tend to feel that showing they are incompetent is the only way to untangle themselves from demands.
Self-destructive behavior is often considered to be synonymous with self-harm, but this is not accurate. Self-harm is an extreme form of self-destructive behavior, but it may appear in many other guises. Just as personal experience can affect how extreme ones self-destructive behavior is, self-harm reflects this. Overall, personal experience and mental health problems is what effects self-harm.
Self-destructive behavior is formed by a repetitive bad habit that is ultimately caused by a preadolescent event that makes them act out in such ways. These past events act as barriers that causes one to feel insecure about a specific situation or event. When this happens, it causes their emotions to be sporadic and they begin to take part in violent actions.
Childhood trauma via sexual and physical abuse, as well as disrupted parental care, have been linked with self-destructive behavior. Usually, behavior like this results from the lack of realization of healthy coping mechanisms. Because there's not a lot of focus on specific mental health problems, such as self-destructive behavior, people aren't being educated on specific ways that could benefit or even prevent these people from acting out.
Additionally, people who have experienced self-destructive behavior in the form of childhood trauma, such as abuse or neglect, can heavily impact someone making them develop with psychological issues that can lead to bigger problems. Aside from this, a need for attention or a feel good sensation can ultimately cause this behavior. A prime example of this would be addiction to drugs or alcohol. In the beginning stages, people have the tendency to ease their way into these unhealthy behaviors because it gives them a pleasurable sensation. However, as time goes on, it becomes a habit that they can not stop and they begin to lose these great feeling easily. When these feelings stop, self-destructive behavior enhances because they aren't able to provide themselves with that feeling that makes mental or physical pain go away. 
Stages of Change Changing ones behavior at times can be really difficult and there will be major stages one passes through on the way to recovery. The stages founded by Prochaska and DiClemente in 1982 consist of 4 different stages. These stages include: precontemplation contemplation preparation action maintenance termination
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