The 14 items on the Type D personality measure that rates negative affectivity included: “I am often in a bad mood”; “I often find myself worrying about something”; and “I often make a fuss about unimportant things.” The social inhibition questions on the Type D scale are similar to those measuring BI, such as “I find it hard to start a conversation.”

Yeah, I'm a Type D.

Funny how the brain works 100% of the time to keep you going 24/7 but then you get in front of someone important or an attractive woman and the brain suddenly shuts off your ability to form coherent sentences.