Poor Sleep Drives Unhealthy Eating Choices.

In 2025, Andrea Bazzani and Ugo Faraguna from Italian universities wrote an editorial reviewing how eating and sleeping are linked. They looked at past studies showing poor sleep changes what we crave, like more sweets and high-calorie foods, due to hormone shifts like less leptin (fullness signal) and more ghrelin (hunger signal). This can lead to overeating and weight gain.

Bad eating habits also mess up sleep—too much caffeine or heavy meals close to bedtime disrupt rest, while missing nutrients like tryptophan (in turkey or bananas) hurts sleep quality. Circadian rhythms, our body clocks, control both, so late-night snacking throws everything off, raising risks for obesity, diabetes, and mood issues.

Eat a balanced dinner early to sleep better and curb cravings.