any causes which include over activity of the thyroid gland as in Grave’s disease or due to neoplasias of the thyroid gland which include adenomas and carcinomas. It can also occur due to an adenoma in the anterior pituitary which leads to increased secretion of TSH which results in overstimulation of the thyroid gland and hence increased release of the thyroid hormone. Inflammation of the thyroid gland can also result in hyperthyroidism.
Thyroid hormone is essential for the carrying out of normal body processes and it is a hormone which is important for the regulation of metabolism. But an increase in the hormone due to the disease can have many adverse effects. The basal metabolic rate of the body can increase 60 to 100 percent more than normal and this can account for the increased sweating and decreased tolerance to heat. The thyroid hormone stimulates the central nervous system but increased quantities can lead to psychological issues and nervousness. The muscles become weak because of the increased catabolism of proteins. The increased quantities lead to an increase in the GIT motility leading to diarrhea and the increased metabolism is the cause of weight loss which may be of varying degrees. The patient experiences. The cardiac system is also affected and increased heart rate and output is noted. The eyeball is protruded and the skin feels hot.
Hyperthyroidism is a pathological condition which not only affects the thyroid gland itself but it disrupts major physiological processed of the body. Medical and surgical intervention can help a person overcome most of the symptoms associated with the