Hypothyroidism, also called underactive thyroid disease, is a condition in which your thyroid gland does not make enough thyroid hormone. Your thyroid gland is located in the front lower part of ...

When it comes to an underactive thyroid or hypothyroidism ... mental and physical fatigue, headache, and migraine, among others, are all symptoms of an underactive or poorly performing thyroid.

It’s estimated that nearly 5% of Americans above the age of 12 live with hypothyroidism, a condition that occurs when the body experiences a deficit of thyroid hormone. The thyroid gland ...