Harold Z Friedman MD

What is heart rate?The heart rate is the number of heartbeats that occur per minute. The normal heart rate depends from person-to-person. As people get older, the heart rate changes and pulse regularity may change, which can signify heart problems or other medical conditions. Your heart rate may...

What is a bubble study?A bubble study is a type of echocardiogram, which is the ultrasound of the heart. An echocardiogram is done to visualize the heart and its surrounding areas. Better images of the heart can be produced when a “contrast” is used during the echocardiogram. In a bubble study,...

What are The Signs and Symptoms of Atrial Fibrillation?Atrial fibrillation also called A-Fib is a condition of the heart which causes irregular heartbeats or arrhythmia. It causes abnormal vibrations in the atria chamber of the heart and also the ventricle chamber. In a healthy human heart, the...

Spanish researchers have found that foods fried in healthier oils, like olive or sunflower oil, may not cause heart disease and premature death. The study was conducted on 40,000 adults who were followed up for 11 years to track the food intake and risk of heart disease. Although the study brings...

What is a persistent cough?It can be annoying to have a cough that lasts for more than a couple of weeks. A cough is considered chronic or persistent if it does not go away after four weeks in children and eight weeks in adults. However, most persistent coughs are due to colds, flu, infection, or...

What is atherosclerosis?Atherosclerosis is also known as arteriosclerotic vascular disease or ASVD. It is a particular type of arteriosclerosis in which an artery wall gets thickened as an effect of attack and accumulation of white blood cells and rupture of the intimal smooth muscle cell producing...