What Causes Hypothyroidism?

Hypothyroidism is a common condition where the thyroid doesn't create and release enough thyroid hormone into your bloodstream. This makes your metabolism slow down.

The most common cause of hypothyroidism is Hashimoto's thyroiditis, an autoimmune disorder. These and other autoimmune disorders occur when the immune system produces antibodies that attack your tissues.

The body's control of the thyroid levels helps stabilize mood. Patients with hypothyroidism may experience symptoms of depression, restlessness and anxiety. Studies have also found that people with bipolar disorder often have abnormal thyroid function.

Although nuts can be a good source of antioxidants and healthy fats, walnuts can interfere with the absorption of thyroid hormone. Avoid eating them around the time that you take your thyroid medication.

Hypothyroidism symptoms often mimic other conditions, including blood disorders, depression and neurologic disorders.