The second function of the eye and body clocks


Every cell in our body has a clock with which it keeps its cycle in order. These trillions of body clocks match their time with the master clock in the lower part of their brain. This allows the whole body to work in unison at different times of the day. But how does this master clock of the brain manage its time? So that is the work of the eye, but how does this eye work? The answer is that this process is completely different from the function of vision and even completely blind people can 'see' day and night.


First of all, let's talk about the experiment on mice. Mice have their own sleep cycle, which is compatible with the day and night cycle. In the experiment on mice, their eyes were covered and their sleep cycle deteriorated day by day as if a clock was slowly ruining its time. Then blind mice were taken that had no photo-receptors (rods or cones) but their sleep cycle was fine. When his eyes were covered, his watch also began to deteriorate, meaning that there was more to his body's watch than just seeing in the eye.


Research has shown that there is another function of the eye. The eye's job is to create an image of the world around it in the brain, but to find out how much light there is, its circuit is completely different and this work is done by ganglion cells. They feel a small part of the wavelength of the blue spectrum. When we need to be alert, the pathway is also from here and many people who are visually impaired but their ganglion cells are fine, their watch is also fine.


So darkness is essential for good sleep. If you go to the bathroom to brush your teeth before going to bed, do not do so in front of bright light, otherwise it will take longer to fall asleep. If we need to have some light in the room while sleeping, the red light does not disturb our sleep.


Finding Question: If you go to a good hotel for a romantic dinner with your spouse, you will feel that the light in the hotel will be dim. In contrast, fast food restaurants are brighter. why so?