Sarma S Challa M.D.

Any condition of the heart should be taken seriously, as heart conditions can cause very serious damage to the body, especially if not treated quickly and adequately. While all heart abnormalities should be treated as quickly as possible, it is important to understand the differences between atrial...

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...

Heart palpitations, although it feels like a scary experience, are not always a sign of something serious. These palpitations are harmless but there are some instances when it could be a signal to a serious heart disease, especially if it is associated with other symptoms. This article explains...

Our heart rate is automatically controlled by the autonomic nervous system (ANS) that has two divisions: sympathetic and parasympathetic. The part of the ANS that is responsible for raising a person’s heart rate through the sympathetic plexus is the sympathetic division. The parasympathetic...

Muscular dystrophies are a group of diseases that make the muscles of the body weaker over a period of time. The muscles become less flexible in this condition. Out of the nine types of muscular dystrophy, Duchenne muscular dystrophy is one of the most common.The main characteristics of this medical...

Systemic Lupus Erythematosus is a chronic autoimmune disease that affects several systems of our body. SLE is also known as discoid lupus or disseminated lupus erythematosus. How common is SLE? Out of all the types of lupus, SLE is the most common form. Systemic Lupus Erythematosus is a very common...