Nutrition & body image
Why do i get really hungry at night?
Hunger signals follow your body clock, and teenagers often genuinely are not eating enough during the day. Skipping breakfast or lunch through a busy school day reliably produces evening hunger, along with poor concentration and worse sleep.
What this does and does not tell you
This is general information, not a diagnosis. Only a clinician can examine you, take your history and run tests. The same symptom has different causes in different people.
If something is sudden, severe, or getting worse quickly, get medical advice rather than reading on.