On Eating - a row of smithereens about hunger and eating No 02

a shelf with bunches of grapes, different kinds of apples, bananas, lemon, sweet pepper. c ignazwrobel

Last: the regulatory circuit

Today: steering mechanisms of the regulatory circuit.

Part one: our hypophysis.

Our brain has – seen from a pov of biological development starting from ape arriving to human being (as Charles Darwin stated against many protests) – parts of different age.

Parts, manhood developed earlier and younger parts. The oldest part of our brain is the hypophsis.

It is a small gland deep in the middle of our brain.

http://www.pezz.ch/fileadmin/images/querschnittgehirnhormone.jpg

The hypophysis is, so to speak the BIOS http://benchmarkreviews.com/images/articles/introduction_to_overclocking/BIOS-PC-Health-Status.jpg of our body. - The system that drives all operating systems of our body.

One of these systems is steering the equilibrium of our energy level by steering the feeling of hunger.

The hypophysis is steering our feeling of hunger and feeling of satiety.

As the hypophysis has its place in the head and eating takes place in a completely different part of our body, there has to be – so to speak – a telephone line between our stomach, the place where food intake is being processed in the first place and the “steering wheel”, the hypophysis.

The feedback system telling the hypophysis that enough food has been taken on board during one meal is a reflex. The reflex the walls of our stomach are being extended. An extension reflex of our stomach walls.

If the walls of our stomach send a message about a certain amout of having been extended, the hypophysis says: stop eating. We´ve got enough energy intake for the next few hours.

...and thus the feeling of hunger terminates.

Tomorrow: hypophysis and twenty minutes.

yet on our list: physical acitvity, the release of adrenalin - and the feeling of hunger