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Something you realize when you look at a baby, is that it just blinks.
Except when they are asleep, science has shown in various studies that these creatures are just closing their eyes.
One of these investigations, published in the scientific journal The Annals of Neurology established that a child's blink rate up to three months was 15 times lower than that of a child. 39, an adult.
While a person over 16 flashes on average 15 times a minute, a baby can only do one, although the most normal thing is to do it between two and three time.
Blinking, however, increases with age. Thus, from 15 or 16 years old, the frequency of a teenager is similar to that of an adult.
This phenomenon has intrigued scientists trying to understand how the brains of these little people can barely communicate.
Here are some of his main findings:
Dopamine
Several studies have concluded that blinking is regulated by dopamine, a neurotransmitter that sends signals of our brain to the rest of the body. 19659003] 
We adults flash about 15 times a minute, according to several studies | Getty Images
A survey from the University of New York, USA, reviewed the various reasons that led us to blink and established a relationship between dopamine and this involuntary act
. flashing frequency in people with schizophrenia or under the effect of drugs, which usually have high levels of this hormone.
In contrast, blinkers decline in people with Parkinson's disease by the death of producing neurons Scientists believe that this may mean that small ones have low levels of dopamine, which can give new clues to their the nervous system.
"The flicker of dopamine," says lead researcher Leigh Bacher. Those who are spontaneous could be clinically useful and serve as an additional source of information on neurobehavioral development, "said Bacher, who needed to continue to investigate the subject
Protection
Another reason we are blinking is to keep the eye lubricated.
Blinking serves as a natural lubricant to activate the glands that produce tears basal to keep the eye hydrated | So Bacher believes that just as low levels of dopamine can influence the number of times that babies open and close their eyes, this can also be explained by the fact that & # 039; 39, they have smaller eyes and sleep.
The two theories, according to him, are not exclusive
Attention
Finally, another of the theories that gain weight among the Bacher so that the scientific community has something to do with the sense of sight.
As the vision of babies is not fully developed, it is believed that children should make more effort to get the visual information they need. 19659003] "When you do things that require a lot of visual attention, you tend to blink less blink," says Bacher.
This also happens to adults with computer syndrome or visual computer syndrome. This is among those who spend a lot of time concentrated in front of a computer.
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