“We’ve made some progress, on a societal level, toward recognizing and normalizing certain mental health issues, but stigma and misunderstanding around many diagnoses still exist. Most people, for example, have a fairly decent understanding of what anxiety and depression entail. Unfortunately, that isn’t the case for BPD ― and it can lead people to assume the worst.”
The study concluded that clusters of BPD in families have genetic causes and are not caused by shared environmental factors (such as socioeconomic status). That means that if those identical twins had been separated and grew up in different environments, their likelihood of developing BPD would remain the same based on their genes.