Sia reveals she suffers from rare neurological disease
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Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactive thyroid. With this disease, your immune system attacks the thyroid and causes it to make more thyroid hormone than your body needs. The thyroid is a small, butterfly-shaped gland in the front of your neck.
(October 4, 2019) Revealed that she suffers from chronic pain and Ehlers-Danlos syndrome.