What kind of experience is hunger?

Hunger, also known as "hunger" and "hunger pain" An unpleasant feeling caused by an organism's lack of nutrition. The triggering factors include the contraction after gastric emptying, the decrease of some nutrients in blood (such as blood sugar concentration) and the enhancement of hypothalamic feeding center activity.

In addition, personal eating habits, food color, smell and taste appeal to individuals will also affect the intensity of hunger. However, gastric contraction may only be an important conditioned stimulus to hunger, and the decrease of blood sugar concentration may be the main reason for hunger.

Because clinical practice shows that after cutting off the contact between vagus nerve and stomach, even after total gastrectomy, there is still hunger. The real reason is not clear. The appearance of hunger can prompt the body to start feeding behavior and supplement nutrients to maintain normal life activities.

Extended data:

Human manifestations of chronic hunger:

The intensity of organ activity decreases, such as slow heartbeat, shallow breathing, decreased muscle activity, decreased sexual function and overall material metabolism level, and the body basically maintains the low-level functional activities necessary for life.

Although the rate of weight loss decreases with the increase of hunger time, it is not as fast as the rate of calorie consumption, which indicates that the decline of metabolic level is not entirely caused by weight loss. Further research also proves that mild food deficiency can sensitively affect the metabolic level, but it does not necessarily cause pathological reaction, so we can further understand the influence of nutrition on the body's development and health quality.

Baidu encyclopedia-hunger

Baidu encyclopedia-hunger