Sentences with phrase «lack orexin»
Interestingly, those who suffer from narcolepsy, a disease in which people are excessively tired and may spontaneously fall asleep during the day, also lack orexin due to a breakdown in the brain cells that produce it.
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It's also been shown that levels of the hormones leptin, ghrelin, cortisol and orexin — all of which are involved in appetite or eating — are affected by lack of sleep.