Hormones and Antiaging Medicine: Thyroid Hormones and Antiaging

Metabolic changes in accordance with growth and aging are controlled by various hormones. Thyroid hormones play an important role in controlling the metabolic functions of the whole body, and they become the target of treatment for both functional renewal and decline. There is a condition called subclinical thyroid dysfunction, which requires careful handling as to whether to treat it, even though the thyroid function is not within the normal range. This section describes in particular the subclinical hypothyroidism, where the relationship with aging is important.