Seven-year-old girls need to run 10 kilometers every day, in fact, in order to donate bone marrow to their sisters, because according to the matching degree in all aspects, seven-year-old girls have become the best match for their sisters.

Doctors tell girls to keep healthy and gain weight, so running is the best way. So the little girl listened to the doctor and insisted on running 10 km every day. Although sometimes she can't, her mother runs with him every day. The little girl really wants to help her sister, so in this matter, he has always insisted on it.

A girl of two or seven years old can reach 50 Jin by herself.

According to the doctor's request to bone marrow donor, a girl must reach 50 kg to donate bone marrow, so the doctor asked him to run and gain weight.

The girl insists on running 10 km every day according to the doctor's method. She has reached 42 kg, but she is still eight kg short, which can meet the doctor's requirements. She also wants to help her sister out of her misery as soon as possible. He wants his sister to be a healthy girl, so it is his duty to help her. He never complains.

A 37-year-old girl needs to keep healthy.

The girl insists on running 10 km every day, and another reason is that she needs to keep healthy to donate bone marrow.

On the other hand, the little girl is very thin after bone marrow donor, and running exercise is also a way to keep fit. So his mother will ask him to run 10 km every day. Even if he needs to stay healthy before donating bone marrow, he hopes to remain healthy after donating bone marrow. He is also very concerned about his two daughters and hopes that they will not be hurt.