Eight o'clock. Entropy subtraction instrument can emit orderly negative entropy energy, which is absorbed by human body through pure physical action, which can help human body to reduce entropy and stimulate human body's self-healing ability. It is better to do it at 8 o'clock in the morning, and the best time to use the human entropy reducer is 30 minutes. In the morning, the immunity is low, and the effect of entropy reducer will be better.