1, kidney deficiency refers to deficiency of kidney essence and deficiency of both yin and yang. There are many kinds of kidney deficiency, the most common ones are kidney yin deficiency and kidney yang deficiency. Symptoms of kidney deficiency: Symptoms of kidney yang deficiency are backache, chills in limbs, chills and even edema, which are symptoms of "cold". Poor sexual function can also lead to kidney yang deficiency. The symptoms of kidney yin deficiency are "heat", mainly including backache, dryness and heat, night sweats, sweating, dizziness and tinnitus. Modern science has proved that when people are deficient in kidney, both kidney yin deficiency and kidney yang deficiency will lead to the decline of people's immune ability. There is more evidence that when kidney deficiency occurs, the immune ability of the kidney will decrease, the microcirculation system of the kidney will also be blocked, and the kidney collaterals will also be blocked. Therefore, the treatment of kidney deficiency should be combined with prevention and treatment

2, staying up late will not be kidney deficiency, this answer is yes. Staying up late can also easily lead to kidney deficiency. Many people stay up late, especially young people. After a long time, they will have problems such as dark circles and mental fatigue. Once the yin and sperm fail too much, it will overload the kidneys and cause many chain reactions.

Often stay up late for kidney deficiency, you can regulate your body by warming up Chinese medicine. Codonopsis pilosula, longan and Paeonia lactiflora are all good Chinese medicines for tonifying kidney. You can go to the hospital to prescribe Chinese medicine for old Chinese medicine practitioners and cook it at home. You can also cook these materials with bones and chicken. Long-term drinking can prevent kidney deficiency and various diseases. You can also drink our medicated wine to keep warm.