There is no known way to prevent this disorder. Strong support from friends and family can help.
Katon W, Geyman JP. Anxiety disorders. In: Rakel RE, ed. Textbook of Family Medicine. 7th ed. Philadelphia, Pa:Saunders Elsevier;2007:chap 57.
Rund DA, Vary MG. Mood disorders. In: Marx J, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 6th ed. Philadelphia, Pa:Mosby Elsevier;2006:chap 109.
Privitera MR, Lyness JM. Depression. In: Duthie EH, Katz PR, Malone ML, eds. Practice of Geriatrics. 4th ed. Philadelphia, Pa:Saunders Elsevier;2007:chap 27.