McNulty sometimes explains OCD like this: Say you had a dream that your husband cheated on you, and when you woke up, you were peeved at him, despite knowing your emotions weren’t grounded in reality.

“People with OCD often feel immense guilt for having such thoughts and feel the need to confess them to their partner, friend ...

Do you sometimes dwell on how your life could have turned out if you had made different decisions? A new study shows the benefits of reducing “What if?” thinking.