Medical Health Encyclopedia

Stress and anxiety

Common Causes:

Certain drugs, both recreational and medicinal, can lead to symptoms of anxiety due to either side effects or withdrawal from the drug. Such drugs include caffeine, alcohol, nicotine, cold remedies, decongestants, bronchodilators for asthma, tricyclic antidepressants, cocaine, amphetamines, diet pills, ADHD medications, and thyroid medications.

A poor diet can also contribute to stress or anxiety -- for example, low levels of vitamin B-12. Performance anxiety is related to specific situations, like taking a test or making a presentation in public. Posttraumatic stress disorder (PTSD) develops after a traumatic event like war, physical or sexual assault, or a natural disaster.

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In very rare cases, a tumor of the adrenal gland (pheochromocytoma ) may be the cause of anxiety. The symptoms are caused by an overproduction of hormones responsible for the feelings of anxiety.

References:

Muller JE, Kohn L, Stein DJ. Anxiety and medical disorders. Curr Psychiatry Rep. 2005 Aug;7(4):245-51.

White KS, Farrell AD. Anxiety and Psychosocial Stress as Predictors of Headache and Abdominal Pain in Urban Early Adolescents. J Pediatr Psychol. 2005.

Lubit R, Rovine D, Defrancisci L, Eth S. Impact of trauma on children. J Psychiatr Pract. 2003; 9(2): 128-138.

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