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    Jennifer Nelson, M.S., R.D. and Katherine Zeratsky, R.D.

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  • Nutrition-wise blog

  • Nov. 7, 2012

    Sleep and energy balance — What's the connection?

    By Jennifer Nelson, M.S., R.D. and Katherine Zeratsky, R.D.

3 comments posted

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Do you faithfully journal your food and exercise? Have you ever tallied calories consumed and subtracted those burned only to be left wondering why your math doesn't equate to weight loss?

What are we missing in the energy equation? The answer might be the number seven. That's the number of hours of sleep recommended by the Healthy People 2020 goals.

Both the rate of obesity and the rate of sleep deprivation have increased in the U.S. in the past 30 years. The statistics are eerily similar: More than 35 percent of adults are obese and about 30 percent get less than 6 hours sleep a night (considered "partial sleep deprivation").

It turns out that beyond the drag and irritability that accompany lack of sleep, partial sleep deprivation has potentially negative effects on how the body regulates energy. The "Journal of the Academy of Nutrition and Dietetics" recently published a review of research about partial sleep deprivation and energy balance. This review found that reduced sleep may:

  • Disrupt appetite hormones
  • Promote greater food intake
  • Reduce energy expenditure
  • Change body composition to favor more fat storage

What's the take-home message? Continue your healthy diet and exercise habits, but also try to get 7 to 9 hours of sleep a night. It just might be the missing factor in the weight loss equation.

Here's to sweet dreams,

Katherine

3 comments posted

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  • March 15, 2013 9:57 a.m.

    I'm a poster child for this article. I've become addicted to various things on the internet, such as Facebook (and its political divisions), C-Span, newspapers and intellectual magazines w comments (the comments are more interesting than the articles)such as The Guardian, Slate, Salon, Esquire, New Yorker, etc., improving my French and learning about international events with Radio France Internationale, and as a result spend day and night on the internet, only falling asleep for 10 minutes to an hour at a time. During this past year I've gained 30 pounds I never had before, and I don't eat much. A week ago I read an article in HuffPo about the 12 ways that lack of sleep will kill you, and I need to pay attention. It also spoke of the weight-gaining effects of lack of sleep. Aside from my sick internet addiction, I have an incurable insomnia that only afflicts me when I sleep in my own bed. If I'm in my recliner, I can fall asleep like a baby, but not for a full night's sleep. The only thing that gets me 8 sweet hours of sleep is a Dalmane pill combined with an Ambien. Too bad if that is against the 'rules', it works unfailingly, and sleep is of more value than not taking 'narcotics'. I take no other substances, not even alcohol, so I do choose my sins carefully. How to get off the internet is a more deadly problem for me than two sleeping pills.

    - Manon

  • November 14, 2012 6:56 p.m.

    I'd give anything to be able to sleep. I'm well aware of the connections between sleep, performance, mental and physical energy, blood pressure and metabolism. The constant reminders of what's happening to me without sleep makes me even more desperate. More medical research is profoundly needed to help those of us who want to sleep but can't - particularly the women in the 50+ crowd. Talk to your physician? Sorry, my physician has no time to talk, and no answers other than chalk it up to menopause. I am following all of the rules for good sleep hygeine - exercise early in the day, no caffiene, no alcohol, evening ritual, etc., but to no avail. I'm lucky to get a few naps at night and stumble through another day. Please Mayo Clinic - research this and come up with some real options. Thank you

    - Mary

  • November 11, 2012 4:34 p.m.

    Thanks so much...nothing like this information coming from an R.D. to a 65 year old with a sleep disorder who has a B.S. & M.A. from the "Home Economics" Department at NYU- now the Nutrition Department. YOU ARE WHAT YOU EAT was drummed into us in the 60's along with GET A GOOD NIGHT'S SLEEP, AND SAY YOUR PRAYERS. Need to loose about 10 pounds but only getting 6 hours of sleep. What fun to read your message and research to back up what we were taught! We need to hear it, read it, process it, and DO IT! INVESTING IN OUR HEALTH IS THE BEST INVESTMENT!

    - Kristina

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