Posts

Showing posts with the label sleep

Good sleep will save from diabetes

Image
U.S. researchers have found that a 7-hour night's sleep can prevent the development of diabetes in adolescents. What is diabetes Diabetes - a disease in which there is a persistent increase in the level of glucose in the blood. Distinguish type 1 diabetes and type 2 diabetes. With type 1 diabetes is a destruction of the pancreatic cells, which produce insulin . Insulin is needed by the body to lower blood glucose. The remaining cells of the pancreas can not meet the body's need for insulin, so most of the glucose does not enter the cells, and stays in the blood. With type 2 diabetes, pancreatic cells do not suffer, and the body is enough insulin. However, the cells lose their sensitivity to insulin - is developing the so-called insulin resistance . If we imagine that insulin - is a key that opens the cell for glucose, insulin resistance is at a key does not fit the lock and can not open the cage. As a result, glucose does not enter the cells, and stays in the blood. T...

Can't Sleep? Afraid of the Dark

Image
For some adults, insomnia may be caused by a fear of the dark, finds a new study by researchers at Ryerson University in Toronto. In the study of 93 students, nearly half acknowledged being afraid of the dark, and they were more likely to poor sleepers than good ones. "We never thought we would see this," says Dr. Colleen Carney, assistant professor of psychology at Ryerson University. "We didn't think people would admit or acknowledge this fear. They would say it's for kids, or be too embarrassed." The participants filled out questionnaires on their sleep behavior, whether or not they had been afraid of the dark as children and they were still afraid of the dark. They also completed an insomnia assessment; based on their responses, the researchers divided the participants into two groups: good and poor sleepers. Following the questionnaires, the participants confirmed the participants' fear of the dark by putting them in either a dark or lit lab r...

Lose Weight Sleep 9 Hours a Night

Image
Sleeping too much does not make one fat in fact, sleeping more than 9 hours a night may suppress genetic influences on body weight, U.S. researchers say. Principal investigator Dr. Nathaniel Watson of the University of Washington and colleagues said the study looked at 1,088 pairs of twins and found sleeping less than 7 hours a night was associated with both increased body mass index and greater genetic influences on BMI. The study, published in the journal Sleep, found the heritability of BMI was twice as high for short sleepers than for twins who slept longer than 9 hours a night. Watson and colleagues determined that for twins sleeping less than 7 hours, genetic influences accounted for 70 percent of the differences in BMI, with common environment accounting for just 4 percent and unique environment 26 percent. For twins averaging more than 9 hours of sleep, genetic factors accounted for 32 percent of weight variations, with common environment accounting for 51 percent and u...