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Sleeping Less Could Make You Eat More

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less sleep could mean more food iStockphoto/Thinkstock

It seems as though we are caught up in the tangle of urban living only to harm our bodies. As the demands of our careers dictate more travel, longer work hours, more frequent work with different time zones aided by technology, we are unconsciously slicing our rest hours as we take a long commute late in the evenings.

Some of the city dwellers are getting just six hours or less of sleep every day. This is in turn spelling trouble for our mental and physical health.

Research conducted by the Minnesota wing of the Mayo Clinic is now telling us that if we do not get enough sleep, we end up consuming more calories than we need, just to be able to feel up to functioning at normal levels. This is a cue to obesity.

This study was presented at the American Heart Association's Epidemiology and Prevention/Nutrition, Physical Activity and Metabolism 2012 Scientific Sessions. (1)

According to Virend Somers, M.D., Ph.D., study author and professor of medicine and cardiovascular disease at the Mayo Clinic, Rochester, Minnesota, “We tested whether lack of sleep altered the levels of the hormones leptin and ghrelin, increased the amount of food people ate, and affected energy burned through activity.” (2)

Leptin is a protein hormone. It is chiefly produced by the fat cells of our body. Leptin is known to interact with parts of our brain which regulate our appetite and so controls our eating behavior and signals that we have had enough to eat. (3).

Leptin also regulates energy expenditure and plays a key role in metabolism of foods we eat. In the absence of leptin or when leptin levels are very low, we could have an uncontrolled need for eating, thus pegging our risk for obesity.

Ghrelin is an amino acid peptide hormone. In generic terms, ghrelin can be described as a counterpart of leptin.

Ghrelin is primarily produced in the stomach as well as in the small intestine and in the hypothalamus. Its chief function is to stimulate hunger. Ghrelin levels increase before meals and subside after we have eaten. (4)

In the study conducted by Mayo Clinic, 17 healthy adults (men and women) were observed for eight nights.

Add a Comment5 Comments

EmpowHER Guest

I think I have always noticed that when I am tired I eat more. I used to think it was two separate issues both related to stress. That is, I thought I slept less due to stress and I ate more due to stress. While I think that is still true for me to some extent, I was very interested to read that the two things are actually related to each other. It makes more determined to stick with yoga and guided meditation to help me get a better night’s sleep.

May 31, 2012 - 11:38am

Dear Anonymous,

Thank you for taking the time to read this Empowher article.

You are absolutely right on this not being a new discovery but with more people leading stressful lives than ever before for a variety of reasons (economy - careers, personal) and the shocking numbers in forecasts coming in for obesity from CDC May 7, 2012 (http://www.cdc.gov/media/releases/2012/t0507_weight_nation.html) , we were good to remind ourselves, just as you said. Keep reading with Empowher!


May 22, 2012 - 11:34pm
EmpowHER Guest

Although this is no news (a Google Scholar search with the keywords "sleep deprivation" "caloric intake" will show up plenty of related research dating back at least to 2004), thanks for reminding us of this important aspect of a regular and balanced lifestyle.
On a personal note, I have also noticed that sleep deprivation not only stimulates appetite but also cravings for junk food... potentially again related to leptin levels and the perceived body need for more energy in the form of fats and sugars

May 22, 2012 - 11:04pm

Thank you so much Dr. Perrone for taking the time to read this Empowher article.

I have noticed this for myself that if and when I am sleep deprived I tend to reach out for sweet foods and that adds to the damage. 


May 21, 2012 - 9:54pm

This all makes alot of sense. A lot of binge type eating happens when we are overtired. Sleep is so important and so many of us(myself included at times) do not get enough of good quality sleep time. Our entire balance is thrown off without proper sleep.

Marielaina Perrone DDS
Henderson Dentist

October 16, 2012 - 8:53am
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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.


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