Ray Edward Johnson M.D.

Recommended Articles

• What Should I Know About Blood Clots?

  Blood flows continuously through blood vessels and supplies nutrients and oxygen to different parts of the body. At the site of an injury, a blood clot prevents excess bleeding. Under normal conditions, blood clots are lifesaving. When the clot is formed as a part of normal repair process in the...

• Nuts and your heart: Eating nuts for heart health

  Whether roasted or raw, walnuts are the best nuts and have an abundance of heart healthy nutrients. In a recent study, researchers compared the amount of polyphenols — the powerful antioxidants — in nine types of roasted and raw nuts. They also measured the amount of these antioxidants in two...

• What is Angina?

  Angina refers to chest discomfort, tightness, or pain that occurs due to a reduction in blood supply to the muscles of the heart. People commonly confuse this chest pain and discomfort with indigestion. Angina can cause an individual's chest to feel heavy, achey, tight, in addition to a burning...

• How Do High Cholesterol Levels Affect the Heart?

  How Do High Cholesterol Levels Affect the Heart?Cholesterol is not that bad for our body – it has several important functions and is needed in moderate amounts. This compound is required to make new cells in the body, protect neurons, and also produce hormones. But when the amount of cholesterol...

• Alternative Treatments for Atrial Fibrillation

  Atrial fibrillation is a condition that causes abnormal vibrations in the heart chambers. It leads to changes in the heartbeat ratesand the pulse. As a result, it may cause clotting of blood in the heart chambers. Such quivering sensations are mostly experienced in the atria and ventricle chambers...

• 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...