: Click Here for instant access to this product. Did you know that chronic tiredness is a symptom doctors usually miss that leads to weight gain and pre-diabetes?br br In 2012, a team of doctors from Harvard Medical School and Boston University completed their 16 year study where they followed 68,183 women recording their sleep habits and weight gain. They concluded that sleep deprivation and fatigue were the leading predictors of the women's body fat percentage and rate of obesity. Another team out of the University of Chicago found that fatigue also increases insulin-resistance, the number 1 contributing factor of diabetes.br br Bottom line: Sleep is perhaps the most important regulator of your metabolism.br br Did you know that a study done in 2006 found that reduced sleep changes your hormone levels making you crave sugary foods? It turns out that reduced sleep increases the 'hunger' hormone ghrelin and decreases the hormone leptin, your 'fullness' hormone. In fact just one night of reduced sleep made otherwise healthy men consumed 22 more calories, mostly sugar, and increased their reported hunger before both breakfast and dinner.