According to Anxiety Center, ???Anxiety Disorders affect 18.1 percent of adults in the United States (approximately 40 million adults between the ages of 18 to 54). It's thought that this number is much higher - closer to 30 percent - as many people don't seek help, are misdiagnosed, or don't acknowledge themselves as having issues with anxiety.??? Anxiety is real, and this does not include general anxiety that is created by work, health, financial, or other concerns.