There has been much research showing that there is a higher risk of a lifetime with a major depressive disorder in early adulthood, if an individual has been physically abused or experienced multiple types of abuse as children.
Depression is seen as a very common consequence of past abuse or neglect and the effects of child abuse and neglect can remain hidden and emerge only when triggered at major times in later life. The old wounds from past child abuse can be reopened and triggered by any further experiences of adverse outcomes.
In fact some studies show some disturbing correlation in adults who had experienced child abuse; Those who had been abused were two and a half times more likely to have major depression and six times more likely to have post-traumatic stress disorder compared to adults who had not experienced abuse.
Experiences that overwhelm or scare us can leave a lasting impression. The symptoms can leave us stressed, depressed, and have negative consequences for our work and home life.
Abuse also continues for longer than it should because of the shame that arises within the family and the individual concerned.
The consequence of this were substantially increased if the adults had also experienced parental divorce/parental relationship difficulties along with child abuse. The events in our past really do have an effect on our present.