Ma Huang, also known as Ephedra sinica, is a plant native to China and other parts of Asia. It has been used in traditional Chinese medicine for centuries, primarily for its stimulant properties. The active compounds in Ma Huang, particularly ephedrine, can help relieve symptoms of asthma and bronchitis by opening up airways. In addition to its medicinal uses, Ma Huang is sometimes found in dietary supplements for weight loss and energy enhancement. However, it is important to use it cautiously, as excessive consumption can lead to serious side effects, including increased heart rate and high blood pressure.