Question

How do you come to know that you are hungry?

Answer 1

Hint: Hunger is a state of emptiness or a sudden urge to eat something. Extreme hunger can lead to severe symptoms like nausea and dizziness. There is an increased release of the gastric hormone which signals the brain to show these symptoms. Also, there is less energy in the body due to the complete consumption of food.

Complete answer:
Hunger is when we feel an urge to eat when there is growling in our stomach.
-The physical sensation or feeling of hunger is associated with contractions in the stomach muscles.
-These contractions are called hunger pangs once they become severe. High concentrations of the ghrelin hormone can trigger their hunger pangs.
-Ghrelin can be released if blood sugar levels get low- a condition that can be made worse by irregular meals. People who have a definite eating pattern are prone to this hunger pangs very often if they don't eat at the stipulated time.
-Older people may feel less violent stomach contractions than younger ones when they get hungry, but still they suffer the secondary effects resulting from low food intake: these include weakness, irritability, and decreased concentration.

Lack of nutrients can lead to increased susceptibility to disease and reduced ability for the body to self-heal.

Note: The hormones peptide and leptin have the opposite effect on appetite. It causes the sensation of being full. This can be used as a supplement during dieting, because the appetite is lowered, and less urge to eat food. When the stomach is empty and the feeling of hunger strikes the urge to eat increases.