Talk show host Wendy Williams revealed on Wednesday that she has Graves' disease. The host of "The Wendy Williams Show" made the announcement during her syndicated show. She said she will take three weeks off starting on Thursday to focus on her health. "As of today, three weeks of vacation," she told the audience. Graves' disease is an autoimmune disorder that causes overstimulation of the thyroid. It can lead to puffy eyes, anxiety, fatigue, insomnia and elevated blood pressure.