Genomics Research has found genetic and familial links in cases of depression.

Scientific investigation has reported that it is possible to inherit an underlying susceptibility to depression. This means that there could be a particular gene that is passed down through generations which may determin how an individual deals with adversity. However, it is understood that in order for the predisposition to develop into an episode of depression, there is often a trigger that will instigate the chain of events leading to a person to start experiencing symptoms of depression.