br Certainly! Here's a description of the symptoms of hyperthyroidism and hypothyroidism in English:br br Hyperthyroidism:br br Hyperthyroidism is a condition where the thyroid gland produces an excess of thyroid hormones. Symptoms include:br br Rapid heartbeat: Increased heart rate leading to palpitations and a sense of restlessness.br Weight loss: Unexplained weight loss despite normal or increased appetite.br Sensitivity to heat: Feeling excessively warm, increased sweating, and intolerance to heat.br Sleep disturbances: Insomnia and a lack of restful sleep.br Nervousness: Anxiety, irritability, and trembling of the hands.br Other symptoms: High blood pressure, frequent bowel movements, trembling hands, and improved vision.br Hypothyroidism:br br Hypothyroidism is a condition where the thyroid gland produces insufficient thyroid hormones. Symptoms include:br br Weight gain: Unexplained weight gain or difficulty losing weight despite efforts.br Feeling cold: Sensitivity to cold temperatures, often feeling chilly.br Sleep issues: Increased need for sleep and feeling fatigued even after a good night's rest.br Slower heart rate: Decreased heart rate and sometimes experiencing palpitations.br Fatigue and weakness: Feeling tired, sluggish, and experiencing muscle weakness.br Joint or muscle pain: Aches or pains in the joints or muscles.