Mallory+W+-+Wonders+of+Science

WONDER QUESTION: Why do we get that "I'm hungry" feeling? Answer: You don't have enough energy when you get that "I'm hungry" feeling.
 * Our body and brain both need energy. If energy gets low, your brain sends an energy alert!
 * Some people believe that you feel hungry because your stomach is empty. That is actually not true!
 * The reason you can hear your stomach rumbling, whether it is a lack of nutrition or not, is because your intestines and stomach get active.
 * When your body wants to do something, your stomach growls like a lion. Sometimes we are bored and don't have anything better to do.
 * People might not "feel hungry" for several days. Carbohydrates and fat produce heat energy.
 * Our body does not demand any certain kind of food. It will take any kind of food even if it is not nutritious. Proteins and nitrogens are used for growth in our body.

[]

If you have that "I'm hungry" feeling, check this out! []