by Dr. Cooley | Jul 2, 2016 | Fatigue, Hormones
The thyroid is a small butterfly shaped gland that sits in the lower neck. It is part of the endocrine (hormone) system. It is responsible for producing the hormones Thyroxine (T4), triiodothyronine (T3), and calcitonin. It is estimated that 20 million people have...
