Graves' disease is thought to be an autoimmune disorder of the thyroid that causes overproduction of thyroid hormones. Hallmarks of the condition are bulging eyes (exophthalmos), heat intolerance, increased energy, difficulty sleeping, weight loss, palpitation, diarrhea, and anxiety.
Reviewed By: Brent Wisse, MD, board certified in Metabolism/Endocrinology, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.