Showing posts with label brain. Show all posts
Showing posts with label brain. Show all posts

Sunday, August 10, 2014

Researchers find consistent loss of sleep injures the brain


Sleeping

Editor: There are serious implications for loss of sleep, as researchers have discovered, finding that five nights of sleeping four hours nightly is like having no sleep
at all.


“There’s a huge amount of interest in sleep restriction in the field today,” said Dr. Chiara Cirelli, associate professor of psychiatry at the School of Medicine and Public Health, who led the research that made these observations more than four years ago.

Many people claim to have sleep problems, while others choose to sleep less.  But for whatever reason, the loss of sleep can be bad for one's health.


“Instead of going to bed when they are tired, like they should, people watch TV and want to have an active social life,” she says. “People count on catching up on their sleep on the weekends, but it may not be enough.”


This “casual” lack of sleep can be harmful.  And research since Cirelli's has substantiated that as well. The physiological impact, as well as the cognitive and behavioral one, have been indicated by the information that has been found through research about sleep.


Researchers have found that lack of sleep actually negatively affects the brain.

Sleep, its patterns, its losses its problems, is a big enough area of study and development that organizations are devoted simply to this activity.


Web MD offers another of problems created from lack of sleep.  It causes accidents, for example, impacts how people solve their daily problems, or if they can indeed solve them.  It makes the kind of fatigue whereby some people become literally combative from it.  It also kills the sex drive and has a host of deleterious effects.

In 2014 researchers found it increases blood pressure, creating hypertension that can cause additional health problems.

How can we begin to correct this problem?

First of all, researchers remind us that bright lights, too much television or the Internet, or too much stress can impact not only how one sleeps but the length of sleep and the deepness of it too.  Many people complain they can't get to sleep, but in the meantime they are in front of a screen that influences the ability to get to sleep.

Sleep is a basic need for the human being, with some variations in the quantity of sleep one may need at various ages and stages.  But it is a source of health-building and maintenance to have enough sleep and to be watchful about it in order to improve one's overall well-being










Saturday, November 16, 2013

How music impacts the brain, changes and reflects moods

[caption id="attachment_16914" align="alignleft" width="300"]Musicians from Fandalism perform a Perfect Day, an optimistic song Musicians from Fandalism perform a Perfect Day, an optimistic song[/caption]

Carol Forsloff---Parag Chordia is a musician and researcher who has examined the impact of music on those who perform it and those who listen. “Most of us are musicians or deeply touched by music,” he tells us, as he offers information on how music actually impacts the brain.

Chordia is the director and founder of the Music Intelligence Group at the Georgia Institute of Technology, which is partly funded by the National Science Foundation, that asks questions according to Chordia as: “How is sound pro­duced, how can it be manipulated—and, also, how is it perceived?” “How does the brain organize sound, and why does it elicit the types of responses and emotions that it does?”

“We said, okay, when a person is hap­py, their speech sounds different than when they’re sad,” he explained. A sad person speaks softly, slowly, often mumbles, and has a darker tone; a happy person speaks more quickly and brightly. “We started to wonder, is music bootstrapping off of the same processes? In other words, are those fundamental acoustic cues being used to signify happiness and sadness in music?”

His research has established that people do perceive music differently according to its pitch. Pitch does assist in establishing the emotion one feels in music, so the lower pitch is identified as sad and the higher pitch as happy. Chordia says, “I think what’s really interesting about music is that it plays off of both these things,” said Chordia, who has studied this phenomenon through computational and statistical modeling of music’s structure. “One of the ways that we describe music is ‘safe thrills.’ It’s like a roller coaster. On the one hand, you know nothing really bad is going to happen, but there are all these pleasant surprises along the way. A lot of music is like that: you set up a pattern and expectation, and then you play with it.” That might mean slightly varying the drumbeat, changing the chord pattern, or add­ing or removing instruments. “Those little surprises, it turns out, can be very pleasurable.” 

In Chordia's research the type and pitch of the music was selected for the subjects. Psychologists have found that when people select their music they also do so according to their moods. So the happy person will select a song that is upbeat, and the depressed person will select music that is sad.

Music is also a way for people to cope with their surroundings or to achieve a desired emotion. We often will pick a song that brings about the emotions we want to have at any given time, so those who want to feel energetic will select music with a strong and lively beat. And it can calm an individual who is stressed or angry. Music indeed soothes the savage beast.