What are the physiological effects of irregular sleep on appetite hormones?

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Irregular sleep shifts appetite hormones by lowering leptin and raising ghrelin

Irregular or disrupted sleep can change appetite regulation by reducing leptin, the hormone that signals fullness, and increasing ghrelin, the hunger hormone. This hormonal shift is described as one reason why staying up for late matches can start to feel less like a choice and more like a compulsion.
Leptin drops after lost sleep
The reported physiological change is a drop in leptin, the hormone responsible for signaling that the body feels full. This means the usual fullness signal is weakened when sleep is disrupted.
Ghrelin rises alongside leptin decline
At the same time, ghrelin rises after a sleepless night. As ghrelin is the hunger hormone, the increase aligns with stronger hunger drive despite the lack of adequate sleep.
The appetite effect is linked to disrupted sleep during major tournaments
The discussion is framed around Malaysia’s late-night World Cup viewing period, where many matches started between midnight and 5am and the final began at 3am. The next day, the piece links weeks of disrupted sleep to broader health concerns and highlights the leptin-and-ghrelin changes as part of how appetite is rewired.
Hormone disruption is presented as part of a longer-lasting pattern
The same coverage also notes that the “excitement of football lasts a night,” while effects of lost sleep can linger longer than that. In this context, the appetite-hormone shift is treated as part of the broader, continuing impact of sleep loss rather than a one-night effect.

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What are the physiological effects of irregular sleep on appetite hormones?

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