Can patients with hyperthyroidism and tachycardia exercise?
Generally speaking, hyperthyroidism, also known as thyrotoxicosis, refers to an overactive thyroid gland. Whether patients with hyperthyroidism can engage in physical activity when experiencing a rapid heart rate depends on their specific medical condition and physical status. If the patient's hyperthyroidism has been effectively controlled through medication or other treatments, engaging in moderate light to moderate-intensity exercise is acceptable. However, if the hyperthyroidism remains uncontrolled or the patient's condition is severe, physical activity is not recommended. Detailed analysis is as follows:

If the patient's hyperthyroidism has been effectively managed with medication or other treatments, and the heart rate has stabilized within a safe range without other serious complications, engaging in moderate light to moderate-intensity physical activities is permissible. Activities such as walking, yoga, and tai chi—low-intensity exercises—can help improve physical fitness, promote blood circulation, and enhance mood.
However, if hyperthyroidism remains uncontrolled or the patient's condition is severe with evident cardiac complications, exercise is not advised. At this stage, physical activity may worsen arrhythmias, increase cardiac workload, and potentially trigger severe complications such as heart failure or angina.
It is recommended to maintain a balanced diet and avoid excessive consumption of any single type of food in order to maintain overall health.