I'm 64 years old... not in terrible shape. Get to the gym and walk run alot. January 2024 I started noticing my heart jumping around, fluttering, and skipping beats. Pretty scary. So finally, about 2 weeks ago, I started taking "Heart Calm" and Vitamin K. I had read in WEBMD that one should take magnesium (Heart Calm" and Vitamin K if your heart is out of rhythm. In about 2 weeks, my heart is beating normal again!! WHAT? That's awesome. Turns out that the electrical beat of your heart has something to do with magnesium. Not sure what that's about. But it really worked !!!!. I uploaded two of my EKG'S. One before and after. You can SEE the difference.