The inactivity of post-CABG patients harms the corin enzyme; ProBNP1-108/BNP1-32 ratios and NT-pro-BNP1-76/BNP1-32, while both HIIT and MCT have a positive effect on ratios of ProBNP1-108/BNP1-32 and NT-pro-BNP1-76/BNP1-32 and could be effective to promote the health of coronary arteries and prevention of HF in post-CABG patients. Here, CORIN is linked to hydrops fetalis.