James A Hill MD

Recommended Articles

• Does an Enlarged Heart Affect Health?

  Enlarged heart or cardiomegaly is an indication of an underlying condition rather than a disease in itself. Enlargement makes the heart work harder than normal and weakens the heart muscles after a period of time. An enlarged heart has a number of causes including hypertension and coronary artery...

• What is Atrial Fibrillation?

  Atrial fibrillation refers to irregular heart rhythm with rapid heartbeat that affect the blood flow in the body.  In this condition, the irregular heartbeat starts in the upper chambers of the heart, the atria. The irregularity in the heart beat results from the problem in the electrical system of...

• Breathlessness: Causes, Symptoms, and Treatment

  Introduction An unpleasant sensation of rapid breathing or difficulty breathing is known as breathlessness. People sometimes complain of feeling winded, puffed, or out of breath. Medically, it is called as dyspnea. Breathing may hurt and the person may feel tightness in the chest. It is normal to...

• The Human Heart: Function, Chambers, and Location

  IntroductionThe human heart is a part of the cardiovascular system that is situated in the middle of the chest between the lungs. Its exact location is slightly positioned to the left and behind the sternum (breastbone). The size of the heart is approximately the size of your fist. Its function...

• How Atrial Fibrillation Is Diagnosed

  Atrial fibrillation (AFib) is a condition that disrupts the heart's functions, specifically the heart rate or rhythm. Symptoms can be intermittent, persistent, or permanent in nature, and in some instances they disappear on their own, while other forms require medication to restore normal heart...

• Health Reasons That Can Make a Person Pass Out

  Causes of Fainting A person faints or loses consciousness for a brief time when the brain does not get enough oxygen. Fainting or passing out is also medically called syncope. Before fainting, people may experience lightheadedness, dizziness, weakness, and nausea. Others describe fainting as...