Long-term SY, kidney deficiency, but the kidney dominates the bone and produces marrow in the brain, and the kidney is prosperous. Without kidney qi, my brain power is insufficient, just like my neurasthenia, dizziness, headache and poor sleep. All knowledge is just memory. How to study without brain power? It can be said that people who are addicted to SY will never achieve anything in their studies!

These two characteristics are my personal experience. Later, I gradually found that many characteristics of SY people are very concentrated and obvious on me, but I don't pay much attention to them at ordinary times. For example, SY people's memory will be severely and rapidly reduced by SY, and their memory will be as fragile and forgotten as an 80-year-old woman.

Natural science subjects, such as mathematics and physical chemistry, need your memory for reasoning. And liberal arts subjects such as history, politics, Chinese, English, etc., I don't need to say the requirements for memory. Sai and YY, your memories have also been destroyed crazily. In that case, it will become extremely difficult to remember English words, and even you can't remember each other's names in interpersonal communication!