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MONDAY, NOVEMBER 23, 2009
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7

Nighttime Snacks Worse Than We Thought

Mouse study shows weight gain more than doubles on opposite schedule

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(Newser) – Eating when you should be sleeping—the proverbial midnight snack, say, or the meals of night-shift workers—could put you at higher risk of obesity, Time reports. A new study fed two groups of mice the same high-fat diet on opposite schedules; the group that ate during “normal” waking hours had a weight gain of 20% after 6 weeks, while the other group gained 48%. The mouse study, the first of its kind, mirrors observational research on humans.

“If an experiment like this is replicated in humans, it might clarify for us just how much time of day matters when it comes to obesity,” an expert says. One of the study’s authors says “our bodies are naturally cued to eat at certain times of the day.” As a result, “dining at the wrong time might affect the body's ability to maintain its energy balance.” This has to do with a complex blend of hormones that can spiral out of control if the natural circadian rhythms are upset.

Midnight snacking.
Midnight snacking.   (Shutterstock)
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For a long time we questioned whether or not eating patterns had anything to do with gaining weight. We had no proof that it's a real problem. - Dr. Louis Aronne, New York-Presbyterian Hospital/Weill Cornell Medical Center

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reasonator
Sep 5, 09 3:09 PM CDT
Found this personally to be true. I work late hours (from 3 p.m. till 12 or 1 a.m.), and I used to eat every night when I got in (eating around 1 or 2 a.m.) I gained some unwanted weight after a while of doing this. When I stopped, I noticed it made a big difference and I started losing the weight. Reply
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youngblood
Sep 6, 09 11:39 AM CDT
I found this to be true too but love eating late at night like lots of people but found out if i do something else like a few minutes of exercise, just 50 sit ups or push-ups, it helps take the cravings away to eat late!
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schmidtkoff
Sep 5, 09 3:16 PM CDT
as a 11pm to 7:30 am worker i can certainly attest to this article. i tend to eat more than i would on an 8 to 5 work day. and my sleeping habits even when not working are so disturbed that i cannot sleep a whole night through. going to sleep at 1:30 pm my normal time when working overnight, on my nights off the same routine keeps me up from 9.00pm until 3:00am. during which time i snack, cook and eat. falling into bed at 4:00am only to waken and feel dazed and confused and disoirented at 5am. i have since left that job but am still not able to adjust to a normal sleep time. Reply
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shonangreg
Sep 5, 09 9:43 PM CDT
I don't think your body/mind can remotely adjust to such a schedule. If you're working the night shift on the weekdays, then you have to keep that schedule on the weekends too. You have to shift everything, including meals and light. Whether you choose morning sleep or afternoon, you need to create a DARK room to sleep in. It should be no brighter than you'd have on a moonlit night, if that. You get paid extra for working the nightshift; use that money to darken a room. Use aluminum foil-covered cardboard sheets or car window dash reflectors -- something you can easily slide in and slide out of the window to keep it dark when you need to sleep. Conversely, on the weekends, you need to do something when you're normally working. Have full spectrum lights to mimic the sun. A big room will give you more freedom to read, write, exercise, develop a hobby, chat online, etc. Your nightshift bonus needs to be able to cover all these extra costs and troubles, or you will be making an uncompensated sacrifice. ....................................... And if you leave that job, just follow the same practices as those suffering from jet lag. Set you new schedule. Eat meals at the appropriate times. Do not snack especially at times when you were having meals before, keep your room dark at night, don't read in bed, and be weary of naps in the daytime. If you need them, keep them short. And get lots of sunshine in the early morning and in the afternoon before sunset. .............. Good luck.
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Snarfeh
Sep 5, 09 11:28 PM CDT
Or, take melatonin around 9 or 10pm (or an hour before you want to go to sleep) each night for about a week, maybe less, and you'll be back on schedule...melatonin does not necessarily make you get drowsy, like say a Unisom, but once you do lay down, you'll go to sleep. I worked in call centers for many years and my shift changed 2-3 times a year. Melatonin always did it for me...
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