Sleep Deprivation Leads to Greater Hunger and Appetite
sleep deprivation adversely affected dieting efforts by decreasing leptin and increasing ghrelin levels
Less Sleep Means Less Willpower
Lack of Sleep Makes It Harder For You to Lose Fat
Lack of sleep also makes it harder for your body to lose fat... At the end of the study, both groups lost about the same amount of weight, but the difference is in what type of weight was lost. Those in the group that slept 8.5 hours lost about half of the total weight in fat mass, and the 5.5-hour group only lost a quarter of their weight from fat mass. To add insult to injury, those in the 5.5-hour group actually lost more lean mass.