Jennifer Lynn Calagan MD, PHD

Atrial fibrillation - also known as AF or a-fib - is a medical condition that affects the rhythm of the heart. Problems that affect the rhythm of the heart cause a condition known as arrhythmia. This condition often causes irregular blood flow. It is quite common, with more than 200,000 cases in the...

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...

What is ischemia?Ischemia is the medical term used to describe a lack of blood flow to certain organs or body parts. Since the blood carries oxygen and other necessary nutrients to parts of the body, when blow flow is reduced these body parts do not receive the adequate amount of oxygen and...

A new study has show that men who do not have children are more likely to die from a heart complication or condition, when compared to men who did have children. In this study, the researchers followed more than 135,000 older men for a decade to observe the impact of fatherhood on health. Study...

Atrial fibrillation is a heart condition that occurs due to an irregular or abnormal beating of the heart. It is a serious medical condition that can result in fatality if not treated.An abnormal heartbeat takes place when the pace of the atria and that of the ventricles are not in harmony. The...

Triglycerides are produced as a product of breakdown of fats. It is also produced from carbohydrates to be stored as energy. Triglycerides are generally stored in fat cells and released when needed.The healthy range or normal level of triglycerides in the body is less than 150 milligrams per...