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What is thyroid?

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      The thyroid is a butterfly-shaped gland located at the front of your neck, just below your Adam's apple. It's a vital part of your endocrine (hormonal) system. What does the thyroid do? The main function of the thyroid gland is to produce and release hormones that regulate your body's metabolism, gr‫اقرأ المزيد

      The thyroid is a butterfly-shaped gland located at the front of your neck, just below your Adam’s apple. It’s a vital part of your endocrine (hormonal) system.
      What does the thyroid do?
      The main function of the thyroid gland is to produce and release hormones that regulate your body’s metabolism, growth, and development. These hormones, primarily triiodothyronine (T3) and thyroxine (T4), act like messengers that influence nearly every cell and organ system in your body.
      Here’s a breakdown of its key roles:
      * Metabolism: Thyroid hormones control your metabolic rate, which is how quickly your body uses energy from food. This affects things like:
      * How fast you burn calories
      * Your body temperature
      * Heart rate
      * Digestive function
      * Growth and Development: Especially in children, thyroid hormones are crucial for proper brain development and overall physical growth.
      * Other Body Functions: Thyroid hormones also play a role in:
      * Muscle function
      * Bone maintenance
      * Nervous system activity (affecting mood, memory, and reflexes)
      * Skin, hair, and eye health
      * Fertility and menstruation
      The thyroid gland also produces another hormone called calcitonin, which helps regulate calcium levels in your blood.
      How is thyroid hormone production regulated?
      The production of thyroid hormones is a finely tuned process controlled by the pituitary gland (located in your brain) and the hypothalamus (another brain region). The pituitary gland releases Thyroid-Stimulating Hormone (TSH), which tells the thyroid gland how much T3 and T4 to produce. If there’s too little thyroid hormone in the blood, the pituitary releases more TSH, and if there’s too much, it releases less.
      Common Thyroid Disorders:
      Problems with the thyroid gland can lead to various conditions, including:
      * Hypothyroidism (underactive thyroid): Occurs when the thyroid doesn’t produce enough hormones, slowing down your metabolism. Symptoms can include fatigue, weight gain, cold intolerance, and dry skin.
      * Hyperthyroidism (overactive thyroid): Occurs when the thyroid produces too many hormones, speeding up your metabolism. Symptoms can include irritability, anxiety, weight loss, and a fast heartbeat.
      * Goiter: An enlargement of the thyroid gland, often caused by iodine deficiency.
      * Thyroiditis: Inflammation of the thyroid gland.
      * Thyroid nodules: Lumps in the thyroid gland, which can be benign or cancerous.

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