Lack of sleep, calories, weight lossResearchers from Columbia University have found that when you don't get enough sleep, you tend to eat up to 300 calories more a day than a well-rested person. And to make matters worse, when you're tired, the type of foods you reach for most include ice cream, one of the worst foods you can eat, especially at night right before going to bed.

It's not news that lack of sleep negatively impacts your health, including weight gain and cardiovascular disease, but this study confirms the specific ways it affects your well being.

One of the things this new study reveals is that sleep deprivation increases your levels of ghrelin, a hormone that stimulates hunger, and lower levels of leptin, a hormone that regulates your feeling of being full or satiated.

Of course there are more negative aspects to lack of sleep including lack of motivation to stay active and exercise, making this a never ending circle of being tired, not exercising, and gaining weight.

Getting enough sleep benefits your health overall including allowing your system to rest and heal, regulate your hormones, allow you to be well rested with plenty of energy to stay active and exercise, work, study and maintain a happy and positive attitude.

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