Hyperthyroidism is a situation where there is too much thyroid hormones in the body. Because the thyroid controls metabolism and temperature, when the thyroid is overactive, it means increased metabolic processes leading to weight loss without trying and increased body temperature, often resulting in more sweating.
Other symptoms of hyperthyroidism include:
- High blood pressure
- Rapid heart rate
- Anxiety or nervousness
- Difficulty sleeping
- Frequent bowel movements
- Hair loss or brittle hair
- Menstrual cycle irregularity
- Muscular weakness
Hyperthyroidism is more common in women than it is in men. The most common cause of hyperthyroidism is autoimmune thyroiditis causing inflammation in the thyroid. Diagnosis is done through a blood test that measures the TSH, free T4, Free T3 and Thyroid antibodies.
Autoimmune hyperthyroidism is called Graves disease. Graves disease patients often have eyes that appear too big (called exophthalmos).
Severe hyperthyroidism can be life threatening, therefore if you have persistent symptoms above, consult a qualified healthcare practitioner and investigate.