"The contrast found that melatonin, a brain hormone that thrives at night and gradually decreases to none when there is light, was more pronounced in subjects with seasonal affective disorder symptoms. Melatonin plays an important role in the sleep cycle of mammals, it is equivalent to the clock in the biological clock, and the work of the human body in different periods and seasons is reasonably arranged. In Scientific American, Professor Boehner, an authority on neurology in the United States, once provided an in-depth explanation of the neuroanatomy of seasonal affective disorders, and also briefly summarized the role of melatonin in seasonal affective disorders. ”

I looked at her with deep meaning: "The total amount of light received by the mammalian body, its brightness and quality, has no effect on the photoperiod response. The effect is the duration of the night perceived by the hypercross nucleus. During the day, SCN inhibits the secretion of melatonin, and the continuous secretion of melanism means that the night continues. This signal is then read and interpreted by the rest of the brain, resulting in morphological, physiological, reproduction, and behavioral seasonal changes. ”

"These seasonal changes are even more pronounced in some species. For example, once the brain of some animals gets this information, they will go into hibernation, and some will enter the breeding period. In humans, it manifests itself in the form of seasonal affective disorder.

But unlike other animals, humans are often exposed to artificial light, which can have some dramatic effects on our melatonin levels, as well as affect our physical and emotional well-being. For example, the light of a computer screen can inhibit melatonin secretion, reduce drowsiness, and also affect a person's biological clock, alertness and cognitive performance level. Findings like this may explain why people who like to use computers at night have insomnia and difficulty falling asleep. ”

"Stop, why are you pulling me to the computer to cause insomnia?" Bai Shan shook her head.

"The fault of divergent thinking. Anyway, I've been kind enough to explain it to you. Shouldn't you pay me somewhat? I rubbed my hands together as if I was fascinated.

"What do you want? I don't have anything of value except my body. Bai Shan looked at me from head to toe with ambiguous eyes: "You are good-looking, it doesn't matter if I give it to you for the first time." Otherwise, let's go to the bathroom to solve the physiological problem, where the camera has a dead end, and no one can see the live broadcast. ”

I barely breathed: "Damn it, who's interested in your body." ”

"Aren't men all interested in women?" Bai Shan stroked her hair suspiciously, her jet-black hair fluttered like a waterfall, and her beauty was a mess: "I'm not beautiful?" Or maybe you have a physical problem, such as a three-letter word that starts with a G. ”

"What about pretty? You don't care if I have a problem. I'm only interested in how to get out right now. I snorted coldly: "Work with me, I know a lot of things, and you won't regret it." ”

"Hehe, who knows." The girl was noncommittal and still played Tai Chi with me. She didn't trust me, just as I didn't trust her at all. In the most special floor of this psychiatric hospital, there is no way to prove who is neurotic and who is not. Being gullible with others is like walking on a single-plank bridge in the abyss, and if you are not careful, you will be crushed.

Her caution made me even more suspicious that this girl definitely had a way to escape from the seventh floor.

Bai Shan's time to relax again, and after she left, I still ran to the men's bathroom to browse the palm computer. When I came out, I found that there was another person in the activity room.

It's Mu Ru, who has had a relationship with himself. I remembered her PPT material, and my heart suddenly moved, and an idea came to my mind. So he walked over slowly and sat down beside her.

Mu Ru was still like a wooden doll, already in tatters, and there was no reaction. How do you open your mouth and pry her mouth open? It's a real headache.

"I heard, you killed your boyfriend and your best friend?" In the first sentence, I finally decided to use the cruelest part. But Mu Ru didn't react.

Doesn't it really matter to her to kill these two guys?

"Is your mother okay? Is it said that she has uterine cancer? "I recalled her information that the girl was a single parent and that her mother had raised her since she was a child. In order to raise money for her mental illness, she did not go to the hospital even if she had uterine cancer. Family affection is the softest place for anyone.

But I was wrong, and Mu Ru still didn't react.

Is this girl's brain really burned out, and she has lost her judgment and consciousness? No, no, I saw in her eyes a deep hidden guard and despair. She must have been thinking about something, and besides, her mental condition was not so bad.

"How did you get to the Samsara Mental Hospital?" I sighed and asked casually.

Unexpectedly, Mu Ru actually trembled, and seemed to react to a certain word in this sentence. I narrowed my eyes, curiosity blazing.

"When did you get up to the seventh floor?" I asked again.

Mu Ru trembled even more. She slowly turned her head to look in my direction, her expression angry and helpless, the anger and deep despair on her face, if it could be ignited, the whole earth would probably be burned to ashes in an instant.

I immediately understood what she meant, and carefully lifted her up from where she was and moved her to Bai Shan's favorite position under the windowsill. Then he said in a deep voice: "Be quiet." There are blind spots that neither the monitor nor the bugging device can notice. Very safe. If you can't speak, nod or shake your head. I'm asking you, you're not actually insane, are you? ”

Mu Ru frowned slightly, hesitated for a long time, and then nodded.

"You were wronged too?" I looked into her eyes, those eyes were clear, and her unbeautiful face was full of inexplicable complex feelings. It seems that she is really sane. As for whether there is mental illness, further probing is needed.

"You really killed your friend and boyfriend?" I continued to ask.

The girl shook her head vigorously.

"But they did die, and the police found a lot of evidence about you. They died horribly, and the killer attacked them from behind and then put them in the bathtub and dismembered their bodies. If it weren't for acquaintances, it would be impossible for the two of them to expose the back of their heads to strangers. This is the human will to protect itself. I said lightly: "So, nine times out of ten, it was really you who killed them." It's just that you don't know about it. ”

Mu Ru's facial features were squeezed together by the stimulation of my words, and she shook her head desperately, trying to deny my speculation.

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