洗冷水澡时因水温过低，人体会感到寒冷，产生一系列应激反应，如心跳加快，血压升高，肌肉收缩，神经紧张等，不但不能消除疲劳，还易引起感冒，应尽量避免。对于那些身体体质较差的朋友，就更不能用冷水洗澡，否则本来抵抗力较差，因冷的刺激，会引发感冒、发热等疾病。

when taking a bath with cold water which is in very low temperature, people feel frozen and many stress reactions from this will hapend such as heart beating fast, blood pressure getting high, muscle contracting, nerve stressing . therefore, it can not make us get rid of our fatigue , but even cause a cold easily . and we should try to avoid to take it. for those friends who have poor constitution, they should be more cautious when taking that bath . otherwise because of cold water's stimulation. their poor bodies might be easily affected by a cold , fever or other disease.