Robert I Nacht MD

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...

What is muscular dystrophy?Muscular dystrophy is a group of disorders that cause skeletal muscle degeneration, decreased flexibility, and progressive weakness. In muscular dystrophy, the abnormal mutation of genes interferes with the production of proteins, which are needed for healthy muscle...

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...

What is costochondritis?Costochondritis is the term for inflammation of cartilage junctions that hold the ribs and sternum or breastbone. The condition is related to chest pain that can affect anyone in the age group of 10-21 years old. Although the pain can often occur, it still remains a mystery...

With modern life complexities becoming more evident, instances of lifestyle health conditions like hypertension have been on the rise. According a recent report, the number of people living with hypertension is estimated to reach 1.56 billion worldwide by the year 2025. In the US, more than 75% of...

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...