Sleep deprivation raises ghrelin (which stimulates appetite) and lowers leptin (which suppresses appetite), leading to increased hunger and food intake. It also affects cortisol levels, which can increase stress and fat storage. Additionally, poor sleep impacts decision-making, making it harder to resist unhealthy food choices. If you're struggling with poor sleep, getting evaluated for conditions like obstructive sleep apnea (OSA) or insomnia can make a significant difference in both weight management and overall health.