The steam is not suitable for patients with coronary heart disease. The steam is a high temperature, and closed space, through sweating out harmful substances in the body. For normal people, the steam method can promote the expansion of tiny blood vessels, accelerate blood circulation, and promote the metabolism of the body. Through sweating out of the body toxins, get rid of cold, but also conducive to alleviate back and leg pain disease, etc., all play a very good health and wellness effects. Coronary heart disease is coronary atherosclerotic heart disease, patients due to the existence of vascular itself atherosclerosis and varying degrees of narrowing, it is easy to occur in the confined space of myocardial ischemia, hypoxia aggravation, resulting in an increased incidence of sudden events, such as angina attack, serious cases of myocardial infarction, and even sudden death and life-threatening. Even for normal people, it is important to pay attention to hydration before sweating, do not be thirsty and then drink water to avoid dehydration. Each steam should not be too long, preferably no more than 30 minutes.