Introduction

Our feeding behaviour is influenced by our taste and our habits. It happens to eat excessively by greed, to calm the stress or because it’s party day.
But sometimes it becomes real and dangerous health problem. Anorexia is one of mental illnesses that we may have observed in feeding behaviour.
Anorexia mainly concerned young girls aged from 12 to 20 years (boys are much less affected).
This disease is very serious because 10% of sick people die, that’s why it’s important to study the causes, symptoms, and effects on the body and treatment options.

I. Definition and pathology

Anorexia nervosa is characterized by the active refusal to eat, motivated by an obsession being thinner. Anorexia is therefore due to the constant fear of being fat or imaginary belief of being fat. The anorexic will weigh herself at each end of meal and continuously measure its "roundness".

Symptoms of anorexia include: * A significant weight loss (up to 50% of normal weight) * Loss of appetite, food refusal * A selection of food * Amenorrhea (absence of rule) * Refusal to acknowledge its thinness * Refusal to participate in family meal * A deficit hyperactivity disorder (intense sport) * A limited affectivity * A wrinkled face, dug * Constipation

Other behaviours may result from this disorder such as bulimia crises, vomiting, laxative use, as well as psychological disorders such as suicidal tendencies.
First, this begins with an ordinary diet, a disagreeable or demoralizing remark, difficult family relationships, absence of benchmarks, an end of a romantic relationship, a lack of confidence, or a desire for autonomy. But the psychological and relational reasons are those who have the more influence.

II. Fretting and the impact on the body:

With no eating, weight loss of the anorexic becomes pathological and with nutritional deficiencies.
On the physical level, the anorexic suffers a loss of weight