Thyroxine or (T4) is one of the hormones secreted by the thyroid gland. On the whole, to two hormones, T3 (Thyroxine) and T4 hormones, the thyroid must be.

this hormone is the addition of four atoms of iodine to the amino acids tyrosine, can be built in ... so iodine deficiency in the body causes disruption in the making of this hormone can be the thyroid gland resulting in an effort that to build this hormone does used and goiter creates. Thyroxine cause high-speed chemical reactions of the body and increase activity of your body. In fact, the metabolism increases.