Fast heart rate in summer may be due to physiologic tachycardia, increased basal metabolic rate, heart disease, hyperthyroidism and other reasons.
1. Physiological tachycardia: In summer, when the weather is hot, there are changes in the regulation of the body’s nerves and body fluids, leading to increased cardiac excitability and causing physiological tachycardia, which generally returns to normal when the ambient temperature is normal.
2. Elevated basal metabolic rate: In summer, when the weather is hot, the body temperature will increase, and along with the elevated basal metabolic rate, the heart rate will naturally accelerate, which is usually a mild acceleration.
3. Heart disease: fast heart rate in summer may be related to their own heart disease, such as myocarditis, pericarditis, coronary heart disease patients, in the case of insufficient blood supply to the heart manifested in the heart rate.
4. Hyperthyroidism: fast heart rate in summer may be their own hyperthyroidism, due to a large number of thyroxine into the blood will lead to a significant increase in heart rate.
There are many reasons for a fast heart rate in the summer, so it is important to seek medical attention if you are experiencing any other symptoms.