Cold knees are mainly due to the lowering of the temperature in nature and the lack of yang energy. Traditional Chinese medicine talks about liver and kidney deficiency, so the body’s own yang energy will follow and the body will show signs of deficiency. In addition, the cold weather, vascular constriction, blood reflux ability will be weakened, so the peripheral blood circulation is not good, resulting in the hands and feet always feel cold. It is recommended that more hot water bubble feet, blood, both to make the body warm, but also to relieve fatigue, pay attention to the usual life to strengthen physical exercise.