Mantram repetition therapy is a type of mindfulness therapy that is used to help calm people and shield them from the effects of intrusive thoughts. It involves repeating a “mantram”—a meaningful word or phrase—in order to tolerate negative thoughts and feelings without reacting to them. Mantram repetition appears to be a promising additional therapy for post-traumatic stress disorder, enabling PTSD sufferers to slow down reactivity patterns and direct their attention in more healthy ways without having to engage with their traumatic memories.