Science has now proven that if you wake up thinking your work day is going to suck, it pretty much will.

More scientifically speaking, researchers from Penn State University found that if you think about how stressful your day at work will be when you're getting ready for it, the worse your concentration and memory will be -- and that will make your day more stressful.

At issue is the key element called "working memory," which controls the ability to process information, and looms large in concentration.  It's working memory that was found to suffer the more a person fears their stressful day ahead, according to the survey of 240 people conducted by the scientists.

So when you're getting up, lighten up.

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