A study from the Medical College of Wisconsin has found that singing the hymn 'Amazing Grace' for just ten minutes can significantly improve cardiovascular health in older adults with coronary artery disease. In a sample of 65 participants, those who sang 'Amazing Grace' experienced a 22% improvement in blood vessel function, while singing 'This Land Is Your Land' resulted in only a 10% improvement. The study suggests that singing can serve as a safe and accessible therapeutic intervention for older individuals, particularly those with physical limitations that restrict traditional exercise. Other songs like 'Hey Jude' and 'Jolene' also showed some benefits but to a lesser degree. Researchers emphasized the need for further studies to examine the long-term effects of singing on heart health. The findings highlight the potential of music as a beneficial activity for both physical and mental well-being.