The heart
Is the representative of the enthusiasm and personal motivation. What keeps us excited and motivated for life is happy to experience the various processes of human experience. For this to be kept, we must accept our emotions and live according to what we feel.
The heart problems come from the despair and discouragement. Dive head-first in the bonds makes us displicentes to activities that always enjoyed, we often step away from friends and family, and we may incur in heart problems. The ambition is behind this. To revert this picture a interior recast of values and priorities.