Pay attention: 12 signs you need more magnesium.

a lot of stress. Stress hormones increase blood pressure and heart rate; this is partly accomplished by depleting the body of its magnesium, explains Dr. Ronald Hoffman. If there isn’t enough magnesium available for the body to replenish itself, sleeping becomes a problem. If you are worried about sleeping well, be sure to check out these tips for better sleep.
5. Irregular heartbeat
With low magnesium levels, the heart can have trouble staying in its regular rhythm. Doctors often prescribe magnesium supplements for patients who complain of an irregular heartbeat.