7-year-old boy might be the cause.

Qi deficiency in seven-year-old boys is considered to be caused by congenital deficiency, chronic illness, improper diet and other factors.

1. If congenital deficiency does

not get enough nutrition supply during embryo period, it may lead to malnutrition after birth, which may lead to poor physical quality and poor qi and blood conservation.

2. Chronic illness

If the boy suffers from chronic diseases or is not treated in time after illness, it may lead to strong evil qi, weak qi, affecting the normal operation of qi and blood, and qi deficiency in the long run.

3. Improper diet

TCM believes that spleen and stomach are in charge of transportation and reception, which is the source of qi and blood biochemistry. If you do not pay attention to diet conditioning, often eat cold, greasy food, or irregular diet, it may cause damage to spleen and stomach, so that absorption capacity becomes poor, affecting qi and blood conversion, which may cause qi deficiency.