Many people buy Xanax online as it is the commonly prescribed psychiatric medication in the United States. At the same time, it is proven to help treat people with anxiety disorders. Anxiety disorders are the most common disease in the United States, affecting more than 40 million adults in the US or 18.1% of the population each year. Anxiety disorders are identified by unrealistic apprehension and worry. Anxiety symptoms include smothering sensations, flushing, sweating. Etc.