of the night, and that results in higher levels of cortisol and insulin, which stimulate appetite and lead to greater insulin resistance. In plain terms, this means that a bad night of sleep can throw you into a temporary prediabetic state. Studies have shown that even one night of partial sleep, or one night without enough REM sleep, can lead to elevated cortisol the next afternoon or evening, along with changes in the hormones and peptides that regulate appetite and lead to greater feelings of hunger.
