2 1 year-old boys are in good health.

Generally speaking, underweight is related to genetic factors, and some emotions are easily excited.

People, due to the influence of endocrine, will accelerate the consumption of calories. Some people get nervous easily, and the result may be the lack of one.

Eating or losing appetite naturally means losing thousands of calories at a time, so you will definitely not gain weight.

If you find yourself underweight and thin, you should first check whether it is the potential shadow of the disease.

The ring.

Thin has several factors:

Genetic and endocrine factors

Under the influence of genetic and endocrine factors, some family members are thin, but there are no organic diseases.

Suffering from it, it belongs to the weak type. It is characterized by slender body, thin neck, flat shoulders and chest, and the lower angle of sternal xiphoid process is less than.

90 degrees, full of energy, fully competent for study or work, but prone to various chronic diseases.

Mental factors

Due to emotional factors, mental anxiety, irregular life, overwork and lack of sleep, physical consumption is greater than intake.

Enter.

prescribe a diet

Irregular diet and lack of physical exercise. Lack of nutrition, especially protein ingredients.