Hyperthyroidism, also known as an overactive thyroid, involves overproduction of the thyroid hormones thyroxine and triiodothyronine. There are several possible causes of hyperthyroidism, including ...

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 ...

An overactive thyroid, or hyperthyroidism, has symptoms like fatigue, anxiety, and weight loss. Some things that can cause hyperthyroidism include Grave's disease and thyroiditis. If you don't treat ...

What does your thyroid do? Your thyroid gland influences almost all metabolic processes in your body through the hormones it makes. Your thyroid gland is part of your endocrine system. When your ...

Your thyroid gland (a small butterfly-shaped organ in the lower front of your neck) makes hormones that help your body use energy, stay warm, and keep your organs working the way they should.

Hyperthyroidism is a common endocrine disorder in middle-aged to older cats, caused by excessive production of thyroid hormone from the thyroid gland. Classic symptoms include weight loss despite an ...

Unexplained weight gain and fatigue could be symptoms of conditions like hypothyroidism and depression. Seeing a healthcare provider is important if you experience unexpected weight gain with fatigue, ...