Symptoms of panic are related to factors such as nervousness, anemia, hyperthyroidism and tachyarrhythmia. 1. Nervousness: when a person is in a state of nervousness, the sympathetic nerves in the body are more excited, and the level of adrenaline secretion is higher, which can lead to a faster heart rate and manifest as symptoms of panic. 2. Anemia: severe anemia can lead to insufficient oxygen content in the body, which is often manifested as compensatory heart rate acceleration, and the symptoms of panic can also appear when the heart rate is obviously accelerated. 3. Hyperthyroidism: Hyperthyroidism is a common endocrine disease, which can lead to elevated levels of thyroid hormones, and elevated levels of thyroid hormones can lead to increased metabolic rate, accelerated heart rate, and symptoms of panic. 4. Tachyarrhythmia: Arrhythmias such as paroxysmal supraventricular tachycardia and atrial fibrillation can lead to panic attacks. Patients who have panic attacks should go to the hospital in time, and under the guidance of the physician, the cause of the disease should be clarified and treated quickly.