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News

  • Study links diet with daytime sleepiness in healthy adults

    May 28 2013...
    A new study suggests that your level of sleepiness or alertness during the day may be related to the type of food that you eat.

    “Increased fat consumption has an acute adverse effect on alertness of otherwise healthy, non-obese adults,” said principal investigator Alexandros Vgontzas, MD, professor of psychiatry at the Penn State College of Medicine in Hershey, Pa. READ MORE>>
  • Circadian clock linked to obesity, diabetes and heart attacks

    Feb 25 2013...
    Disruption in the body's circadian rhythm can lead not only to obesity, but can also increase the risk of diabetes and heart disease.

    This is the first study to definitely show that insulin activity is controlled by the body’s circadian biological clock. The study, which was published on Feb. 21 in the journal Current Biology, helps explain why not only what you eat, but when you eat, matters. READ MORE>>
  • Dietary nutrients associated with certain sleep patterns

    Feb 21 2013...
    A new study from the Perelman School of Medicine at the University of Pennsylvania shows for the first time that certain nutrients may play an underlying role in short and long sleep duration and that people who report eating a large variety of foods – an indicator of an overall healthy diet – had the healthiest sleep patterns. The new research is published online, ahead-of-print in the journal Appetite.

    “Although many of us inherently recognize that there is a relationship between what we eat and how we sleep, there have been very few scientific studies that have explored this connection, especially in a real-world situation,” said Michael A. Grandner, PhD, Instructor in Psychiatry and member of the Center for Sleep and Circadian Neurobiology at Penn. “ In general, we know that those who report between 7 - 8 hours of sleep each night are most likely to experience better overall health and well being, so we simply asked the question "Are there differences in the diet of those who report shorter sleep, longer sleep, or standard sleep patterns?” READ MORE>>
  • Lack of sleep may cause overeating

    Nov 01 2012...
    A new study of 27 normal weight, 30- to 45-year-old men and women examined the association between sleep duration and hunger. Results indicate that increasing the amount of sleep that adults get could lead to reduced food intake, but the hormonal process differs between men and women.

    Short sleep increased the total level of ghrelin, a hunger-stimulating hormone, in men but not women and reduced the level of GLP-1, a hormone that makes you feel full, in women but not in men, a sex difference that has not been reported before. READ MORE>>