Medically reviewed by Kelly Wood, MD Key Takeaways Hyperthyroidism is when the thyroid makes too much hormone, affecting ...

If your mysterious weight loss, sudden intolerance to heat, and noticeably irregular period has you scouring the internet for the reasons why, you’ve probably wondered if your symptoms are the result ...

A 25-year-old women presents with a 4- to 8-week history of nervousness, anxiety, palpitations, and weight loss of about 10 pounds despite a good appetite. She does not have chest pain, a history of ...

Some research suggests there may be a link between hyperthyroidism and tachycardia. When a person has hyperthyroidism, the body produces too much thyroid hormone, which can affect the heart. People ...

Hyperthyroidism in infants is rare but potentially serious. It is often a temporary condition that has associations with maternal Graves’ disease. Graves’ disease is an autoimmune condition that ...

High TSH levels can mean you have an underactive thyroid or a pituitary gland tumor. Low TSH levels can mean you have an overactive thyroid or issues with the pituitary gland. TSH levels are first ...