Sunday, March 11, 2012

One should eat only when hunger gnaws really

One should eat only when hunger gnaws really
The Germans are thicker and thicker: Nutrition researchers are advised to eat only when the real hunger is. Otherwise, surplus pounds landing on the hip. Who is hungry, eats. And who has no appetite - eating too often. The Germans are getting fatter, as confirmed by numerous studies. That would be no problem if overweight, high blood pressure, high cholesterol and physical inactivity are not the biggest risk factors for cardiovascular disease would be. And it is this cause for years on the statistics of causes of death. Food for all too much, because they do not pay enough for her body and its needs? Or does not the body that is healthy for him?
Some scientists believe that in our society, the hunger feeling somehow missing a beat. The reason for this would be somewhere in the complex regulation of appetite, hunger, satiety and food are.

In the center of the regulation of hunger and satiety is the hypothalamus, a part of the midbrain. He picks up information from the body, and accordingly controls the hunger and satiety. Leptin, a hormone from adipose tissue is a kind of "energy meter" - it signals the hypothalamus to the state of energy reserves in the body.

Another important hormone ghrelin, which is produced in the stomach. Its concentration decreases immediately after eating and then gradually increases again. That hunger due to contractions of the empty stomach is created, is now largely disproved. Studies show that people get hungry too, if you the stomach was removed.

But a number of other factors also play a role - a low blood sugar levels and certain hormonal processes and the loss of body heat around. During the meal, then measure receptors, whether the stomach is full, and send satiety signals to the hypothalamus. At the same receptors in the gut and liver to determine the nutrient content of food.

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