“Vital capacity as a predictor of cardiovascular disease according to the Framingham study.” Source : https://www.sciencedirect.com/science/article/abs/pii/000287038390532X
Another way of saying this is lung capacity, elasticity, and the ability to breath well has a direct influence on heart health.
What is vital capacity ?
Vital capacity (VC) is the maximum amount of air a person can expel from the lungs after a maximum inhalation. It is equal to the sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume. It is approximately equal to Forced Vital Capacity (FVC).