Now, pure CBT is extremely logical and reasoned. And Linehan discovered that her patients felt incredibly invalidated by it. Their worth and belief in themselves had been shattered from being raised in emotionally abusive, invalidating homes, and trying to challenge their logic felt like a repetition of the message that they weren’t capable or worthy. Linehan changed all that by creating dialectical behavioral therapy, and since then, DBT has become a gold standard go-to for helping folks with borderline personality disorder, cutting, substance abuse, and more.