Borderline Personality Disorder is thought to be caused by a combination of biological and environmental factors – nature versus nurture. Now scientists are finding that cognitive training can alter brain chemistry. This is what I’ve long since known as I experienced this in my own recovery from Borderline Personality Disorder. The good news for those with BPD is that regardless of the degree to which brain chemistry may be altered (yet to really be proven) the fact is that therapy, specifically cognitive based therapy can alter brain chemistry and create the changes required in thinking to recover from Borderline Personality Disorder.