Heart palpitations have a variety of causes, including nutritional deficiencies, stress, heart disease, high blood pressure and allergic reactions, among others. Bananas are a good source of potassium, a primary electrolyte in your body essential for normal heart contraction and rhythm.

Runners might expect to feel soreness in their legs or abdominal muscles after a run. However, some runners might experience chest pain while running, which isn't a typical effect of going on a run.

If your blood pressure is higher than normal, a mineral imbalance in your diet may be at least partially responsible. Most Americans consume improper amounts of the potassium and sodium that regulate the force exerted on the walls of your arteries by blood pumped from the heart.

If you're looking to add an extra boost to your workout, nitric oxide supplements may be the way to go. Nitric oxide increases the blood flow in your body, allowing oxygen to be delivered to your muscles more quickly.

When a child says that his heart is racing, more than likely he is experiencing an arrhythmia, or an abnormal deviation of the regular heart rate. When it is a fast heart rate, it is called tachycardia.

Consuming lots of salt, because of its high sodium content, raises blood pressure and can increase your risk of other problems such as heart disease and atherosclerosis.

Low blood pressure is also known as hypotension. While low blood pressure in adults is a wellness goal, in children, lower-than-normal pressure can be dangerous. Hypotension may occur for a variety of reasons. On one end of the spectrum are relatively mild, reversible causes of hypotension such as dehydration.

According to the Centers for Disease Control and Prevention, more than 652,000 Americans died of heart disease in 2005. In fact, heart disease remains the leading cause of death in both men and women in the United states.

Numerous diseases can cause lightheadedness and stomach sickness. According to the U.S. National Library of Medicine and the National Institutes of Health, dizziness is lightheadedness, or the feeling of imminent fainting. Lightheadedness occurs when there is inadequate blood flow to the brain.

Lower back spasms, also often referred to as cramps, occur because of inflammation that follows an injury to the muscles in your lower back. Besides being painful, lower back spasms can increase your blood pressure because as your muscles repeatedly contract, they restrict regular blood blow.

Heart ablation, also known as cardiac ablation, is a treatment which can be used for certain kinds of heart arrythmias. This procedure involves threading a catheter through blood vessels until it gets to the heart. The catheter can then be used to destroy any abnormal heart tissue which is causing the arrythmia.

Cholesterol is a fatty substance that your body makes and uses for important functions. You also get cholesterol from the foods you eat. Too much cholesterol in your blood can cause the buildup of plaque in your arteries, a condition called hardening of the arteries or atherosclerosis.