Gallery 25 Things People with an Underactive Thyroid Understand Eva Sumner2019-07-23T15:20:08+00:00 Did you know there are more than 3 million cases of hypothyroidism diagnosed each year in the U.S. 25 Things People with an Underactive Thyroid UnderstandEva Sumner2019-07-23T15:20:08+00:00