Congestive heart failure
According to Henry W. Wright
Possible spiritual roots
Fear, anxiety, stress and torment keep a person feeling threatened.
Difficulty arises in trusting God's provision and resting securely on the Father.
The body remains in a stress response for a long time instead of in peace and rest.
In the Be in Health description, the heart muscle gradually weakens and stiffens.
The heart pumps less and less effectively — congestive heart failure.
Spiritual response
Renounce fear, torment and unbelief, rely on God's faithfulness, receive His peace and pray for restoration of the heart's function.
Sources
Henry W. Wright — archived teaching / Be in Health — Unity in the Body of Christ
Unity in the Body of Christ — https://www.beinhealth.com/unity-in-the-body-of-christ/
The 8 Rs to Freedom — https://www.beinhealth.com/8-rs-to-freedom/