Posts Tagged ‘sleep deprivation’


July 15, 2019

This post is based on a book by Stefan Van Der Stigchel titled “How Attention Works: Finding Your Way in a World Full of Distraction.” This term, “infobesity,” as been coined by the popular media, but it is increasingly being referred to as a clinical disease. The term is the brainchild of a “trend team” employed by a company specializing in identifying trends among young people. Although there is very little scientific literature on the subject, the fact is that doctors are treating more and more teenagers these days for problems associated with a lack of sleep.

Dr. Van Der Stigchel writes, “One of the factors contributing to this lack of sleep is our insatiable appetite for information that is presented to us on-screen.” Obviously this leads to problems with concentration. From the scientific studies that have been done, young people are extremely frequent multimedia users. On average 18-year-olds spend a total of 20 hours a day on various media. Obviously this can only be because different media are used simultaneously, which further exacerbates the damage. The vast majority of this multimedia use is of the visual kind. Functions that rely on the spoken word have been replaced by visual ones. Unfortunately voice mail is becoming a thing of the past because it takes too much time, and people prefer to send their messages screen-to-screen instead. Dr. Van Der Stigchel notes that we are using the telephone less and choosing more often to interact with others on-screen and not only through hearing their voice. If e-mail and WhatsApp relied on the spoken word, they would be less popular.

Dr. Van Der Stigchel writes, “Screens are so efficient at communicating information that we see them everywhere nowadays. The result is a titanic battle for our attention, We have already established that it only takes a quick glance at a limited amount of visual information to know what that information is. In a single moment, we choose the one piece of visual information that is most relevant to us from all the information swirling around us. We then process this one piece of information deeply enough to be able to establish its identity. All of the other information continues to blink away furiously, but it can only become relevant when we decide to look again.”

How does one deal with infobesity? We need to deal with infobesity the same manner in which we deal with obesity. We deal with obesity by selectively controlling and reducing our food input. We deal with infobesity by selectively controlling and reducing
our information input. Unless one is a professional on-call, a physician for instance, there is no reason for staying continually connected. This FOMO (Fear of Missing Out) is irrational. Most, if not practically all, messages can wait until we have time to pay attention to them. When we interrupt what we are doing to process a message, there are two sources of attentional loss. There is additional information to deal with at the same time, and there are also time and attentional costs involved in switching between sources of information and processing them

An examination of different sources of information can lead to deletions of certain sources. Some information is of little value, so these sources of information should be eliminated. Our attentional resources are extremely limited, so we need to spend them carefully.

In conclusion, deal with infobesity by going on an information diet, and processing only those sources of information that have substantial value.

© Douglas Griffith and, 2019. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Douglas Griffith and with appropriate and specific direction to the original content.

The Brain Starts to Eat Itself After Chronic Sleep Deprivation

June 30, 2017

The title of this post is identical to the title of an article by Andy Coghlan in the News & Technology section of the May 27, 2017 issue of the New Scientist. Michele Belles of the Marche Polytechnic University in Italy says the chronic sleep deprivation could explain why a chronic lack of sleep puts people at his age of Alzheimer’s disease and other neurological disorders.

The brain cells that destroy and digest worn-out cells and debris go into overdrive in mice that are chronically sleep deprived. Although this might b beneficial in the short term, clearing potentially harmful debris and rebuilding worn circuitry might protect health connections. But when this continues in the long term it destroys healthy brain material.

The researchers specifically looked at glial cells, which serve as the brain’s housekeeping system. Previous research had found that a gene that regulates the activity of these cells is more active after a period of sleep deprivation. One type pf glial cell called an astrocyte, removes unnecessary synapses in the brain to remodel its wiring. Another type of cell, called a microglial cell, prowls the brain for damaged cells and debris.

The research suggest that sleep loss can trigger astrocytes to start breaking down more of the brain’s connections and their debris. Bells says, “We show for the first time that portions of synapses are literally eaten by astrocytes because of sleep loss.

The researcher found that microglial cells were more active after chronic sleep deprivation (Journal of Neuroscience, 10.1523/JNEUROSCI.3981-16.2017). Excessive microglial activity has been linked to a range of brain disorders. Bells says, “We already know that sustained microglial activation has been observed in Alzheimer’s and other forms of neurodegeneration.

This research could explain why a lack of sleep seems to make people more vulnerable to developing such dementias.

It is still not clear whether getting more sleep could protect the brain or rescue if from the effects of a few sleepless nights. The researchers plan to investigate how long the effects of sleep deprivation last.

To learn more about the effects of sleep deprivation, enter “sleep deprivation” into the search block of the healthymemory blog.dem