Magnesium and potassium, along with sodium and calcium, are examples of electrolytes that are present in the blood. Electrolytes help trigger and regulate electrical impulses in the heart and low levels of magnesium and potassium can lead to an electrolyte imbalance, which can contribute to arrhythmia.
Passing hard stools is usually as a result of constipation or the infrequent movement of the bowels. Most healthy people have at least three bowel movements per week, according to MedlinePlus. If you are unable to have a bowel movement or are having difficulty passing stool, contact your doctor.
A fecal impaction is a large mass of dry , hard stool that can develop in the rectum due to chronic constipation . Usually fecal impaction is noticed when you are straining and water stool comes out, but I have had hard stool come out today. Chronic constipation can cause the rectum to be extremely dilated resulting in blockage, or fecal impaction. This mass may be so hard that it cannot come out of the body .