Lack of thyroid hormone blocks hearing development

(American Friends of Tel Aviv University) Fatigue, weight gain, chills, hair loss, anxiety, excessive perspiration -- these symptoms are a few of the signs that the thyroid gland has gone haywire. Harnessing electron microscopy to track the inner hair cells of the cochlea in two groups of mice, new research from Tel Aviv University points to an additional complication caused by an imbalance in the thyroid gland: congenital deafness.