Many people report a puzzling experience: they go to bed feeling extremely hungry but wake up the next morning with little or no appetite. The question, recently raised in a Quora discussion, has drawn expert insights explaining the science behind it.
According to Dr Mohnish Kataria, Senior Consultant in Gastroenterology at Paras Health Panchkula, the phenomenon is fairly common.
“During sleep, the body adjusts energy use and hormone levels. Appetite-regulating hormones like ghrelin (hunger hormone) and leptin (satiety hormone) fluctuate overnight, which in some people can suppress morning hunger,” he told media, reports Indian Express.
During sleep, the body’s energy demand drops significantly as physical activity is minimal. With fewer calories being burned, the body does not signal an immediate need for food upon waking.
As a result, hunger may be temporarily absent in the morning. For many individuals, appetite gradually returns later in the day, meaning that occasionally skipping breakfast is not necessarily a cause for concern.
Experts highlight several factors that may influence this pattern:
Sleep patterns: Irregular or poor-quality sleep can disrupt hunger hormones, reducing appetite.
Metabolism: A slower metabolic rate during the night and early morning weakens hunger signals.
Eating habits: Going to bed hungry or consuming late meals can alter the body’s energy balance.
Circadian rhythm: The body’s internal clock may delay the onset of hunger until later in the day.
Specialists note that morning hunger varies from person to person and often builds as the day progresses.
When to seek medical advice
However, a persistent lack of appetite may signal an underlying health concern. Dr Kataria advises seeking medical attention if the following symptoms occur:
Continued loss of appetite throughout the day
Unexplained weight loss
Fatigue or weakness
Nausea, bloating, or digestive discomfort
Such signs could indicate gastrointestinal or metabolic conditions that require professional evaluation.
