Hyperthyroidism is a condition characterized by an overactive thyroid gland, leading to excessive production of thyroid hormones. Thyroid hormones play a crucial role in regulating metabolism, so when they are produced in excess, it can cause various symptoms and health issues. Some common symptoms of hyperthyroidism include: Unexplained weight loss: Despite increased appetite, individuals with hyperthyroidism may lose weight. Increased heart rate (tachycardia): The heart may beat faster than normal, leading to palpitations or irregular heart rhythms. Anxiety and nervousness: Excess thyroid hormones can cause feelings of anxiety, nervousness, or irritability. Heat intolerance: People with hyperthyroidism may feel excessively warm and have an increased sensitivity to heat. Fatigue and weakness: Despite the increased metabolism, individuals may feel weak and fatigued due to the strain on their body. Tremors: Shaking or trembling of the hands or fingers can occur in some cases. Chang...