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After 1 night of getting less than the recommended 7+ hours of sleep you are...

....hungrier and apt to eat more. Studies have linked short-term sleep deprivation with a tendency to fill up on bigger portions and a greater likelihood of choosing unhealthy foods while grocery shopping.

Sleep deprivation in just one night can take its toll.
Photo by Darren McCollester/Getty Images

...more likely to have an accident. Sleep deprivation can just make you generally more clumsy, whether you are behind the wheel or not, reports Prevention. According to research from Manchester Metropolitan University, just one bad night's sleep can affect a driver's eye-steering coordination and according to the National Sleep Foundation's, getting six or fewer hours of sleep a night triples your risk of drowsy driving-related accidents.

...not looking your most approachable or best. Beauty sleep is real. In 2013, a small study was published in the journal SLEEP that found that sleep deprived study participants were rated as less attractive and sadder. In Stockholm, Sweden, a different study from the Medical Institutet Karolinska found that exhausted people are also judged to be less approachable.

...more likely to catch a cold since proper rest is one of the building blocks of a healthy immune system. One Carnegie Mellon University study found that sleeping fewer then seven hours a night was associated with a tripled risk of coming down with a cold. The Mayo Clinic explains:

During sleep, your immune system releases proteins called cytokines, some of which help promote sleep. Certain cytokines need to increase when you have an infection or inflammation, or when you're under stress. Sleep deprivation may decrease production of these protective cytokines. In addition, infection-fighting antibodies and cells are reduced during periods when you don't get enough sleep.

...losing brain tissue. A study published in the journal SLEEP, found that just one night of sleep deprivation was linked with signs of brain tissue loss, measured by blood levels of two brain molecules that usually increase after brain damage.

...more likely to get emotional. After sleep deprivation, the brain's emotional centers may be more more than 60 percent more reactive according to a 2007 study from researchers at the University of California, Berkeley and Harvard Medical School who used functioning Magnetic Resonance Imaging to show this.

...less focused and having memory problems. According to Harvard, sleep is thought to be involved in the process of memory consolidation, which means shortchanging it can make it more difficult to learn and retain new things.

In an article in the Huffington Post dated just yesterday, it was noted that a study published last year showed that just one week of sleeping fewer than six hours a night resulted in changes to more than 700 genes.

Have you read about the WSJ contributor who wrote that vaccine-skeptical scientists deserve appreciation & fair media coverage? See:

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