What is widowmaker - fit and folded?

As an AI language model, I can provide only limited information about the subject.

Widowmaker is a term used to describe a type of heart attack that occurs when the left anterior descending (LAD) artery of the heart becomes completely blocked. The LAD artery is responsible for supplying blood to the front and left side of the heart. When this artery becomes blocked, it can cause a severe and sometimes fatal type of heart attack, known as a widowmaker heart attack.

"Fit and Folded" is not a direct term associated with the widowmaker heart attack. It might refer to fitness exercises or yoga positions. However, as an AI language model, I cannot provide accurate information without proper context.