Why do problems with the heart lead to difficulty breathing?

Answer: Most of the heart related problems causes difficulty in breathing because heart and lungs are involved in the transportation of the oxygen.

Explanation:

Heart and lungs are involved in the transportation of the oxygen from the heart to various parts of the body.

Gaseous exchange takes place in the lungs and the oxygen rich blood is transported to various parts of the body from heart.

This is the reason that any problem in heart can lead to difficulty in breathing.

The circulatorio And respiratoria systems working together