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EVEN JUST ONE SLEEPLESS NIGHT
Can Cause Metabolic Dysfunction...

  During the past decade researchers have discovered that continuous lack of adequate sleep can cause metabolic defects similar to those indiabetic patients. Blood sugar tends to be higher and insulin resistance more pronounced in people who don’t get adequate sleep. Recent research however, showed that even one night of sleep deprivation can create the same diabetes-like problems.

     In a study just published in the June edition of the Journal of Clinical Endocrinology and Metabolism (95:2963-2968, 2010), researchers in the Netherlands allowed normal subjects to sleep for only 4 hours for a single night. They found that after just one night of sleep deprivation, the body was not able to respond nearly as well to insulin the next day as after a normal night of sleep.

Read the whole article here ... by Dr Gary Pepper MD

...BUT PROLONGED SLEEP DEPRIVATION
Can Cause Diabetes, Heart Problems,
and Premature Death

     Too little or too much sleep, that is sleeping less or more than 6 to 8 hours on average, is linked to premature death. This was found by a new study that pooled data on more than 1.3 million participants worldwide, by researchers at the University of Warwick in the UK and the Federico II University Medical School in Naples, Italy, and published in the 1 May issue of the journal Sleep.

     First author Professor Francesco Cappuccio, who heads the Sleep, Health and Society Programme at the University of Warwick, and colleagues, found that sleeping less than 6 hours a night was linked to a 12 per cent higher chance of premature death compared to sleeping the recommended 6 to 8 hours.

     In a press statement, Cappuccio, who is also Consultant Physician at the University Hospitals Coventry and Warwickshire NHS Trust, suggested that: "Modern society has seen a gradual reduction in the average amount of sleep people take, and this pattern is more common amongst full-time workers, suggesting that it may be due to societal pressures for longer working hours and more shift-work." 

     In a similar study, researchers in West Virginia, US have discovered that disrupting the body clock or circadian rhythm could interfere with a normal 24 hour cycle of high and low triglycerides in a way that leaves them at a high level all the time, potentially raising the risk of atherosclerosis and heart disease.

     A study in the Aug. 1 issue of the journal SLEEP suggests that regularly sleeping for less than seven hours per day is associated with an increased risk of cardiovascular disease. Results show that eight percent of the study population reported sleeping five hours per day or less including naps, and multivariable logistic regression analysis revealed that their risk of any cardiovascular disease was more than two times higher than that of people who reported a daily sleep duration of seven hours.

     "Our study findings suggest that abnormal sleep duration adversely affects cardiovascular health," said principal investigator Anoop Shankar, MD, PhD, Associate Professor in the Department of Community Medicine at West Virginia University School of Medicine in Morgantown, W.V. "Sleep disturbances may be a risk factor for cardiovascular disease even among apparently healthy subjects."

Note: Any medical information published on this website is not intended as a substitute for informed medical advice and you should not take any action before consulting with a health care professional.