An overactive thyroid can affect your eyes, skin, nails, heart, weight, mood, and even your bones. In this video, we break ...

Central hypothyroidism is when your thyroid hormone levels are low because your hypothalamus or pituitary gland isn’t functioning properly. Hypothyroidism — also called an underactive thyroid — is a ...

Hypothyroidism, or underactive thyroid, develops when the thyroid gland does not produce enough of the hormones thyroxine (T4) or triiodothyronine (T3). Around 5% of people ages 12 and older in the ...