Hunger is your body's natural cue that it needs more food.
When you’re hungry, your stomach may “growl” and feel empty, or you may get a headache, feel irritable, or be unable to concentrate.
Most people can go several hours between meals before feeling hungry again, though this isn’t the case for everyone.
There are several possible explanations for this, including a diet that lacks protein, fat, or fiber, as well as excessive stress or dehydration.
If you always feel hungry, it may be a sign of dietary deficiencies, stress, not getting enough sleep, or hormone imbalances.
Eating enough protein, staying hydrated, and getting enough sleep can help reduce hunger.