The thyroid: function and importance

In short: The thyroid is a small, butterfly-shaped gland in the neck that produces hormones controlling metabolism, energy consumption, and growth. Overactivity or underactivity can have wide-ranging effects on the entire body.

In more detail: The hormones T3 and T4, along with iodine as an important building block, are central to thyroid function.

In detail

• Hormone production: Triiodothyronine (T3) and thyroxine (T4) regulate how quickly cells consume energy.
• Iodine requirement: Iodine from food is an essential building block for thyroid hormone production.
• Hypothyroidism: Too little hormone production can cause fatigue, weight gain, and sensitivity to cold.
• Hyperthyroidism: Too much hormone production can cause rapid heartbeat, weight loss, and inner restlessness.
• Regulatory loop: The pituitary gland controls how much the thyroid produces via the hormone TSH.
• Goiter: An enlarged thyroid often results from iodine deficiency and is widespread in some regions of the world.
• Note: Not a substitute for medical advice.

(hormone-und-stoffwechsel, blut-zusammensetzung-und-aufgaben)