“This paper highlights that magnesium glycinate plays a role in helping to regulate the electrical impulses that control the heart’s rhythm, thereby helping to prevent arrhythmias and promoting a regular heartbeat”
Link to article here https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3703169/ and this article https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5852744/