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.
Constipation, typically caused by a poor intake of dietary fiber and water, can cause hard stools to form in the colon. If you are constipated youâll place added pressure on your rectum when trying to pass a bowel movement. This pressure can strain the blood vessels of the rectum and cause them to rupture.