According to an article by Dr. Mehmet Oz, M.D. in the November 2009 issue of Glamour Magazine, even one restless night of 4-hours’ sleep, or less, can make you grumpy and tired. You will also find it more difficult to process complex information, and you’ll want to eat more – especially sweets! This is because your body wants a quick energy fix any way it can get it. Additionally, with lack of sleep and rest, your body will produce less growth hormone, which is responsible for regenerating and repairing tissues and for keeping you looking younger longer.

Each person has individual sleep needs, however, the average recommended sleep needs for women is 7 hours. Men need more shut eye, and need closer to 8 hours of sleep.