Hypothyroidism: Hypothyroidism is a condition where the thyroid gland does not produce enough hormones, leading to symptoms such as fatigue, weight gain, and depression.
Hyperthyroidism: Hyperthyroidism is a condition where the thyroid gland produces an excess amount of hormones, leading to symptoms such as increased heart rate, weight loss, anxiety.
TSH (Thyroid-Stimulating Hormone): TSH is a hormone produced by the pituitary gland that stimulates the thyroid gland to release its own hormones.