(HealthDay News) -- Anxiety disorders may be mental health conditions, but they can cause a number of physical problems.

The University of Maryland Medical Center lists these physical complications that can arise from anxiety disorders:

• Heart disease.
• Risk factors for heart disease, including thickened blood vessels, high blood pressure and high cholesterol levels.
• Irritable bowel syndrome and other gastrointestinal problems.
• Headaches.
• Respiratory conditions, including asthma.
• Obesity.
• Allergies, including food allergies, hay fever, eczema and other allergic conditions.