How does stress affect thyroid function?

Chronic stress can have a significant impact on thyroid function. Stress causes the release of cortisol, which can interfere with the body's ability to convert T4 to the more active T3 hormone. Prolonged stress may suppress thyroid-stimulating hormone (TSH) levels, leading to symptoms of hypothyroidism even if thyroid hormone levels are normal. Stress can also exacerbate autoimmune thyroid conditions, such as Hashimoto’s disease or Graves’ disease. Managing stress through lifestyle changes, mindfulness practices, and proper medical treatment is essential for maintaining healthy thyroid function and reducing symptoms.