Showing posts with label sleep behavior. Show all posts
Showing posts with label sleep behavior. Show all posts

Monday, April 28, 2014

Women need to sleep longer than men, due to lack of sleep as they develop depression, according to U.S. scientists.

This is the conclusion the staff at Duke University in North Carolina, who found that the fairer sex, suffering from deprivation (a mental condition caused by the deprivation of the most basic necessities of life) sleep, often faced with depression and behave more aggressively. At the same time, according to the researchers, the lack of sleep does not cause such problems in men.

Scientists explain this fact is that the brain of women requires a longer recovery time.

Earlier it was reported that the lack of sleep in women may increase the risk of cardiovascular diseases, diabetes and other diseases.

Swiss scientists with previously expressed the opposite view, arguing that insomnia can help in the treatment of depression.

Wednesday, January 22, 2014

High levels of the hormone that regulates sleep-wake cycles - melatonin - reduces the risk of developing aggressive prostate cancer at 75%, has established a group of researchers of the department of epidemiology at the Harvard School of Public Health (Boston).

The results of the scientists were presented at the conference of cancer, according to Medical Xpress .

Melatonin is produced exclusively in the dark and is an important regulatory component of human circadian rhythms. "Insomnia and other sleep disorders can affect the amount of melatonin or completely stop its production in the body," - explained Sara Markt (Sarah Markt), one of the co-operation.

The study, which lasted for seven years, attended 928 Icelandic men. Volunteers were asked to answer questions related to the regime of sleep and wakefulness, as well as urine test, in which scientists determined the level of one of the decay products of melatonin.

It turned out that every eight volunteers had trouble falling asleep, one in five could not sleep for a long time (all the time waking up), and one-third took sleeping pills. All these men melatonin level was significantly lower than that volunteers do not have problems with sleep. Of 928 participants with prostate cancer developed in 111.

The researchers found that men with high levels of melatonin had a 75% lower risk of aggressive cancer. Now Markt and her colleagues plan to confirm this result in further studies.

Canadian scientists have proposed to diagnose prostate cancer with the help of another hormone - ghrelin is responsible for hunger.

Thursday, December 19, 2013

Healthy sleep - good health and high spirits, it is known to all. But how much sleep do we need to keep pace with living a full life, what is the best time to go to bed and get up.

These issues are often neglected because each day brings so much trouble that begins acutely regret that in a day just twenty-four hours.

First of all, you must decide who you are - a lark or an owl. Determine it is very easy - just select the hours in which you are most active and operational. Larks most workable in the early morning, while the owls tend to sleep longer, stay up as late as possible, "wake up" only in the evening and begin to actively do things all day.

Once you determine who you are, get a free week in order to highlight how much time you want to sleep. Amazingly, the limits of how much a person needs time to sleep, can range from twelve to four hours a day! It all depends on how active you are driving and, of course, on the age. Define test for weeks your required mode in which you feel best and number of hours required for you to sleep.

No matter how it was unfortunate, but modern life dictates its own rules, not everyone can boast that they go to bed and wake up at a time when they want.

The only thing you can do - in accordance with your biorhythm move more important things for the evening or morning, respectively, and if you can not decide how many hours you need to sleep, try to sleep every night is not less than seven hours. This is quite enough to the brain, and the human body a rest from the stress and burden that they suffered during the day.

Tuesday, December 17, 2013

Lack of sleep harms the pancreas. This is evidenced by the results of a study conducted by researchers from the University of Pennsylvania School of Medicine.

They conducted a study on mice and found that lack of sleep triggers cells in pancreatic stress , which is associated with impaired clotting proteins. This may lead to cell death, especially in the elderly, when the anti-stress mechanisms are weakened. It has been proved that lack of sleep causes a particular type of stress in which proteins accumulate in the cell with irregular structure, which prevents them from fulfilling their functions. These data concerned brain cells. New research has shown that the same effect lack of sleep has on pancreatic cells. During the experiment, mice were deprived of sleep. Age-related changes intensified stress arising due to lack of sleep. If lack of sleep was very large, the animals raised blood sugar levels. Young mice to cope with it, and at the senior level of glucose remained high. Over time, this could provoke diabetes.

Monday, December 09, 2013

Scientists believe that bad dreams help psyche to cope with negative emotions, while nightmares indicate that processing has failed.

As you know, we sleep about a third of his life, that is more than twenty years. 5 years of the twenty we dream. And there, you see, sometimes things happen much more interesting than real life.

People have long tried to unravel the purpose of bad dreams. The latest research in the field of psychology and physiology of the brain helped to open the door a little to the mysterious world of dreams.

Scientists believe that bad dreams help psyche to cope with negative emotions, while nightmares indicate that processing has failed.

In the journal Current Directions in Psychological Science , scientists Ross Levin and Tore Nielsen wrote that terrible dreams - one of the methods that the brain uses to process negative emotions.

Emotional regulation may be the main purpose of sleep, which occurs in the majority of dreams.

Nightmares, which scientists define as bad dreams that lead to awakening, by contrast, arise when the process emotion regulation is violated.

The researchers note that the bad dreams - quite normal. From observations, most of our dreams are difficult to attribute to the happy.

See all dreams. With that hardly anyone would argue - at least a couple of dreams in my life be able to remember each. Much more surprising - we see them every night, but still not one but five pieces.

Certainly not everyone will agree, and for good reason. In fact, we just did not remember. It does not depend on memory, and the attitude to dreams, or rather to the fact that they show us. If a person believes their complete nonsense, then his dreams with the onset of the morning, most likely, delicately hidden somewhere in the depths of the subconscious.

Lots of running and physically tired people usually sleep, "like the dead" and their dreams too little remembered.

Dreams are the same for us every night, without asking permission, and not interested in our relationship, because it is a physiological process, like everyone else.

Nightmares, forcing the person to wake up, according to scientists, disrupts the normal recycling process emotions. Waking up in the midst of a nightmare seems to rescue the man, but he woke up, he was only strengthened by the feeling that the danger is real.

Nightmares are a lot of people, especially in a period of strong stress . Approximately 85% of people might be at least one nightmare a year.

Nightmares become a problem if they begin to affect the day well-being.

Scientists also write that new ideas about the nature of nightmares helped create a new, more effective treatments for this problem.

For example, its effectiveness has been proven method replay images when the patient while awake recalls his nightmares and consciously change their story.