Scientists have solved the mystery of what exactly daylight does to our brain. It is well known that changes in the amount of daylight we receive can trigger seasonal affective disorder.
A study in mice found that neurons residing in the suprachiasmatic nucleus coordinated with each other depending on the length of daylight hours . Changes were noted both in the cells and in the neural network. The suprachiasmatic nucleus (SCN) is a time counter inside the hypothalamus that ticks all day long. The number and expression of key neurotransmitters varied with daylight levels.
Daytime sleepiness may indicate stroke susceptibility – doctor inside the hypothalamus, which helps manage stress, metabolism, the immune system, biological growth, and more. Now researchers have established a molecular link between daylight and our behavior. In both mice and humans, SCN is part of the brain's timing mechanisms, responsible for physical, mental, and behavioral circadian rhythms on a 24-hour pattern.
Daylight cures myopia
Researchers were able to identify changes in the neurotransmitters Neuromedin S (NMS) and vasoactive intestinal polypeptide (VIP) in mice, which could then be manipulated to alter network activity. Science has come close to man being able to control his reaction to more or less light. (READ MORE)