What does the sliding pulse mean by yang?

Smooth pulse, according to yin and yang, belongs to yang. Smooth pulse refers to the smooth flow of pulse under the finger, such as pearl running disk. Traditional Chinese medicine believes that smooth pulse is caused by phlegm, internal heat, food accumulation and other diseases, due to pathogenic excess, positive qi not tonifying deficiency, positive qi and evil fighting each other, qi and blood fluctuation. At the same time, smooth pulse can also be seen in pregnant women and healthy young adults, due to qi and blood fullness. According to smooth pulse, the main disease is excess syndrome, or heat syndrome, according to yin and yang, smooth pulse belongs to yang. In general, exterior syndrome, excess syndrome and heat syndrome are classified as yang syndrome, while interior syndrome, deficiency syndrome and cold syndrome are classified as yin syndrome.