"Lack of sleep affects your brain." - according to scientists and researchers. Lack of adequate sleep affects mood, motivation, ...

The Incredible Ways Lack of Sleep Makes Your Life More Difficult

"Lack of sleep affects your brain." - according to scientists and researchers. Lack of adequate sleep affects mood, motivation, and everyday life. 
Poor sleep or lack of sleep has the strongest link to stress & depression. Lack of sleep shortens your life expectancy. Scientists make new findings of how the lack of sleep can alter our emotional balance.

Researchers have found that people with sleep deprivation have difficulty reading other people's facial expressions, particularly when expressions are more subtle. They are less able to discern, for example, whether their partner is upset or simply serene.

The Incredible Ways Lack of Sleep Makes Your Life More Difficult
When they have not slept enough, people are also less expressive in their emotions. For example, they smile less, even when they feel something is funny. Using neuroimaging, scientists are discovering certain patterns of brain activity that could explain the emotional volatility that may be caused by lack of sleep.

"Few things get so upsetting as quickly and profoundly as our emotional stability... when we're not getting enough sleep," says Matthew Walker, a professor of neuroscience and psychology at the University of California, Berkeley. Misinterpretations and lapses can wreak havoc on relationships.

Experts generally recommend that healthy adults sleep seven to nine hours a night. However, adults in the United States, for example, report that they sleep on average less than seven hours a night, according to a 2014 survey of more than 444,000 people analyzed by the Centers for Disease Control and Prevention country. Nearly 12% of respondents said they slept seven hours or less.
"Sleep deprivation can causes of your short term brain damages"
In a 2014 study published in the journal Experimental Brain Research, 49 healthy young adults were divided into two groups. One spent one sleepless night while the other slept normally.

The next day they were shown images of faces that varied in their degree of emotional expression. Subjects with sleep deprivation were much slower in identifying emotions on all types of faces and less able to correctly identify happy faces.

Other studies have also found that sleep-deprived people are less able to accurately identify angry and happy faces, particularly when expressions are subtle. While many sleep deprivation studies have left subjects awake all night, scientists say the results are likely to be applicable to the more common experience of sleeping insufficiently hours chronically.

Sleep deprivation can have implications for public safety, says Namni Goel, a sleep researcher at Perelman School of Medicine at the University of Pennsylvania. Military personnel and police officers, he says, often face situations in which they need to accurately interpret the facial expressions, and motivations, of others.

"Lack of sleep won't let you be succeed"
"If you are slower to identify what is happening and that combines with what you know, you become more impulsive when you are sleep deprived and risk-taking increases, that can have fatal consequences," says Goel.

David F. Dinges, a professor in the department of psychiatry at the same university, has scientific evidence that people with sleep deprivation tend to overreact to minor things.

In a 2012 study, he and his colleagues kept a group of subjects without sleep for one night while the other slept normally. The next day, the participants performed a series of tasks, including mathematical problems. Some were easy and some were more complicated. They also received feedback on their performance, sometimes positive and sometimes negative.

After completing difficult mathematical problems with negative comments, both groups reported being similarly stressed, angry, anxious and depressed. In contrast, after solving easy problems, sleep-deprived subjects had higher levels of stress, anger, and anxiety than the group that rested.

"Sleep deprivation lowers your stress threshold. One is basically less able to deal emotionally with that. That would explain anger responses to small things."

Catherine has noticed that the days she sleeps at six hours the night before, she is more irritable and nervous. "I'm scathing with people and impatient," says the 54-year-old Ottawa woman who works in educational sales and is also a part-time personal trainer. Little annoyances - like forgetting your toothbrush on a trip - can become "catastrophic," he says.

In neuroimaging studies, scientists have found that sleep deprivation can amplify the activity of the brain's amygdala, a part of the brain that plays a key role in processing emotions, and weaken the activity of the prefrontal cortex, which is crucial for Regulate emotions.

Walker, of Berkeley, has found that when sleepy subjects see disturbing images - such as tarantulas or house fires - while on magnetic resonance imaging machines, their tonsils are 60% more reactive compared to people who slept Well and they see the same photos.

This hyperresponsiveness of the tonsil body can begin to occur at about 6 and a half hours of sleep or less, he explains. The dream of rapid eye movements, in particular, seems to be critical for the processing of emotional experiences.

"I called this therapy at night," says Walker.

Most research has focused on the negative impact of sleep deprivation on cognition and performance. This is of particular concern to the armed forces and to sectors such as medicine, trucking, and aviation.

Some people manage to lose sleep much better than others. Researchers also don't know how long it takes people to recover from the negative emotional effects of sleep loss.