Have you ever sat in a boring meeting and wondered: "What if I just started shouting?" Or you're driving along and you think: ...

Intrusive thoughts are a symptom of obsessive-compulsive disorder (OCD), a mental health condition in which a person experiences involuntary obsessions and compulsions that may cause distress.

Do you ever find yourself daydreaming or distracted and your thoughts turn negative? You try to push away the upsetting thoughts, but it’s difficult, or even impossible. Those are intrusive thoughts.

Warning: The following includes descriptions of intrusive thoughts that some readers may find distressing. Have you ever been standing on a train platform, minding your own business, when your brain ...