Energy runs through your body and through specific organs throughout the night. That is why a Chinese medicine doctor suggests going to sleep at 9 p.m. and they ask you if you wake up at night to use the restroom because that tells them what organ is activated at that time. Honestly.
I played the doctor to doctor game and my doctor was clueless why I was itching. Oh, everyone has dry skin he said, and then he said his wife has that too. I laughed because it was such a dumb answer.
I fired him that day and went to a Chinese medicine doctor that day and in 15 minutes he said I had a liver pattern going on. We ran tests and he was right. He cured me in a flash.