Still more research is out about the impact that lack of sleep can have on your desire to eat, and therefore your weight. This time, the research is showing that if you don’t sleep enough, you may be “super sizing” your meals more often.
The research, conducted in Sweden and published in the Journal of Clinical Endocrinology & Metabolism showed that that a single night of total sleep loss in young normal weight men increases the activation of a brain region involved in a desire to eat. During the study, 16 normal-weight males were asked to select their ideal portion sizes of 7 meal and 6 snack items, in both hungry and sated conditions. In one condition, they were sleep-deprived, in the other condition they had a night with approximately 8 hours sleep.
After a night of total sleep loss, these males chose greater portion sizes of the energy-dense foods. Interestingly, they did so both before and after a breakfast, suggesting that sleep deprivation enhances food intake regardless of whether the individual is actually hungry or not.
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