Headache

Headaches are usually caused by either muscle tension, vascular problems, or both. Migraines are vascular in origin, and may be preceded by visual disturbances, loss of peripheral vision, and fatigue. Most headaches can be relieved or ameliorated by over-the-counter pain medications.
Review Date: 06/19/2008
Reviewed By: Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard
Medical School, Department of Neurology, Massachusetts General
Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director,
A.D.A.M., Inc.














