# Brief communication: sleep curtailment in healthy young men is associated with decreased leptin levels, elevated ghrelin levels, and increased hunger and appetite

Spiegel K, Tasali E, Penev P, Van Cauter E · Annals of Internal Medicine 141(11):846–850 · 2004



## Key finding

Two nights of 4 h sleep raised ghrelin, lowered leptin and increased appetite ~24%, especially for calorie-dense carbs.



[Read the paper](https://pubmed.ncbi.nlm.nih.gov/?term=Brief+communication:+sleep+curtailment+in+healthy+young+men+is+associated+with+decreased+leptin+levels,+elevated+ghrelin+levels,+and+increased+hunger+and+appetite)

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Educational summary of published research, not medical advice. Screening scores are not diagnoses. If a score is elevated or you feel unwell, talk to a clinician.

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