Compulsions: These are repetitive behaviors or mental acts that someone feels compelled to perform as a way of reducing anxiety or preventing a feared event.
Obsessions: Intrusive thoughts, images, or impulses that cause distress and lead to significant anxiety. They often trigger the need for specific behaviors.
Obsessive-Compulsive Disorder (OCD): A disorder characterized by the presence of both obsessions and compulsions, leading to significant distress and impairment in daily functioning.