New research from the University of Cambridge suggests a traumatic upbringing during childhood can lead to personality traits such as impulsivity or compulsiveness.
Impulsivity or compulsiveness, in turn, are linked to an increased risk of addiction.
In the study, Cambridge researchers aimed to identify risk factors that make a person vulnerable to developing drug dependence.
They examined 50 adults with cocaine dependence together with their biological brothers and sisters who have never abused drugs.
All participants underwent extensive assessments of their personalities, including their ways of feeling and thinking. The researchers were also interested in negative experiences that participants may have had during childhood (including physical, emotional or sexual abuse)