How Does Your Thyroid Work? Your thyroid is a butterfly-shaped gland located in the front of your neck that influences almost all the metabolic processes in your body. Measuring only a few inches in length, your thyroid is part of the endocrine system, which is made up of glands that produce, store, and release hormones. The thyroid gland takes the iodine from the food you eat and creates thyroid hormones, which are then released into the bloodstream. Once they can reach your body's cells, they regulate all sorts of processes like your heart rate or how fast your body digests food. It's important that your thyroid hormone levels are just right. If they're too low, you could have hypothyroidism. Symptoms include fatigue, weight gain, constipation, feeling cold, and even feeling depressed. If your thyroid hormone levels are too high, you could have the opposite problem-- hyperthyroidism-- and experience heart palpitations, anxiety, sweating, dia...
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