As the overweight or obese have negative effects on the health of the body weight loss or excessive thinness has some disadvantages but less harmful than overweight.
Some person complains of excessive thinness since childhood other may be a new complaint.

In this case by examining the person well to diagnose the reason for this loss in weight, so that it is often associated with diseases where early diagnosis is important.

Excessive thinness and beauty of women:

As the obesity make women lose their beauty and grace which may make women look Older than her real age as well as excessive thinness are usually as undesirable not only for women but for men.

Excessive thinness often to conceal the cause of beauty for women in many parts of her body, which is considered a important layers of fat for the emergence of these parts such as the beauty of the face, chest and pelvis.

Vulnerability to severe heart of fever and diarrhea:

Skinny body is affected more natural heart of the body diarrhea, fever, where the body will be more susceptible to dehydration and fatigue.

Vulnerable to cold weather:

The fatty layers in the body and the natural buffer to protect the body from the very cold weather, we find that skinny body more vulnerable to climate during the cold winter.

Fractures during accidents:

A skinny body more susceptible to bone fractures during accidents compared to the natural body.

Psychological damage:

Skinny person affected psychologically and in some cases, we note that it's located is clearly among girls.

Causes of loss of weight or thin:

Reasons other than disease(no disease):

In this case we note the loss of body weight compared to the weight and size of the person who used it often distinguishes this is that this person good health and did not complain of symptoms or signs of abnormal as the appetite to eat normally get this when exposed to the work of the human body or mental muscle than used By.

In some cases the reason is not the work of many mental or muscle, but the lack of food intake compared to return the person was not a result of the weakening or loss of appetite for food (This is what we will address the causes of the sick and skinny weight loss) but either for lack of food or lack of desire to eat, although There is appetite for example, during programs such as Dieting to lose or hunger strike.

diseases reasons for the loss of weight (a result of diseases):

Weight loss with a normal or excessive appetite to eat: In certain diseases occur in which the person is injured by the thin body and excessive appetite for food and these diseases are: diabetes Type I, Disease increased secretion of the thyroid gland and malabsorption.

Weight loss with the loss or lack of appetite for food and certain diseases occur in which the person is injured by the thin body and very little appetite for food and these diseases are: Chronic inflammation, Cancer, Psychological reasons and Smoking.