Hot bath panic, chest tightness, is due to higher indoor temperature, air circulation and other reasons, as follows: 1, the indoor temperature is higher: due to the hot bath when the water temperature is higher, the bath room is relatively closed, the indoor temperature is higher, resulting in the expansion of the skin and peripheral blood vessels, the redistribution of blood in the body, it leads to a relative reduction in the supply of blood to the heart and brain. 2, air circulation: due to the humidity in the bath room Larger, the air is not circulated, resulting in relatively high indoor carbon dioxide content. All of the above factors can lead to the symptoms of heart panic and chest tightness. If the patient’s original coronary heart disease basis, the feeling of panic and chest tightness will be more obvious. In this case, we should stop bathing first, open the windows and doors appropriately to keep the air circulation, and adjust the water temperature appropriately after the symptoms are relieved, and avoid bathing for a long time.