Cardiology Experts from Cardiothoracic Hospital said, "This is related to swimming for too long."

Even in the better indoor swimming pool in the winter, the heat produced from the body in the water is lower than the heat dissipation in the water. In this way, human's temperature adjustment function has been destroyed, if the time is a little longer, the skin will appear artery contraction,  and small veins expansion, which results in the blood stop in the subcutaneous vein. During the suffocating process, the heart beating and blood flow returning both will be affected, with conditions of oxygen deficit being much serious than normal people's.

Meanwhile, while swimming the swimmer's chest pressure increases. After a long time it will increase the burden on the heart, leading to suddenly faster heart beating, which is likely to cause heart disease. Therefore, people without the usual habit of swimming in the winter shall not swim too long. If any uncomfortable symptom is felt, swimmers should go ashore to immediately wipe the water away the body and dress well as quickly as possible to prevent catching cold, tachycardia and so on.

Swimming for a long time can induce tachycardia edited by Heart Problems, all rights reserved, Do not copy or revise without our permission.