What changes occur in thyroid hormones in depression?

Changes in thyroid hormones in depression typically include decreased thyroid hormone levels, hyperthyroidism, and positive thyroid autoantibodies. The specific details are as follows:

1. Decreased thyroid hormone levels

In patients with depression, thyroid hormone levels may decrease, particularly T3 and T4 levels. This may be related to slowed metabolism in depressed individuals, or could result from a reduced bodily response to thyroid hormones.

2. Hyperthyroidism

Some individuals with depression may develop hyperthyroidism, characterized by elevated thyroid hormone levels. This may be associated with abnormal stress responses in depression, or possibly due to an enhanced bodily response to thyroid hormones.

3. Positive thyroid autoantibodies

Depressed patients may test positive for thyroid autoantibodies, which may stem from abnormal autoimmune reactions leading to thyroid dysfunction, thereby affecting mood and psychological status.

Besides the above changes, thyroid hormone levels may also remain unchanged in some cases. If symptoms of thyroid hormone abnormalities occur, it is recommended to seek medical attention promptly for professional evaluation and treatment.