Cold shower is not good for people with high blood pressure, and it is also not good for normal people, because the process of cold shower is a stressful process, the patient will suddenly have peripheral vasoconstriction, increased ejection of blood from the heart, which will trigger an increase in blood pressure and increased work of the heart muscle. If the body is strained due to stress, it will also lead to vasoconstriction of the coronary arteries and other blood vessels, and the possibility of coronary heart disease in people with hypertension itself, which can easily induce angina and even acute myocardial infarction. So people with high blood pressure must not take a cold shower, normal people are not recommended to take a cold shower, to the normal 30-40 ℃ warm water bath is more beneficial to the body, and the bath time is generally not more than 10 minutes.