The thyroid is an endocrine gland located in the neck, that releases the hormones responsible for regulating metabolism. These hormones affect almost all bodily tissues, by influencing the breakdown of glucose and fat, the release of free fatty acids, cholesterol levels and other digestive functions.
Other functions of the thyroid include the following:
Also known as underactive thyroid, hypothyroidism is a condition in which your thyroid does not produce enough hormones. This can result in a slower metabolism, obesity, heart disease and other conditions.
The common symptoms of hypothyroidism include the following:
Children with hypothyroidism may display poor physical and mental development, delayed puberty and slow growth of permanent teeth.
Conversely, hyperthyroidism, or overactive thyroid, happens when the thyroid produces excessive amounts of the hormones. This can result in a rapid metabolism, weight loss, nervousness and an irregular heartbeat.
Some of the symptoms of hyperthyroidism are as follows: