Why did the North Korean soldier risk his life to defect ?

A North Korean solider who escaped South Korea across the border from the DMZ on the 13th of last month. He was hit by gun and nearly lost his life. The soldier was sent by helicopter and, going to the hospital for medical treatment by helicopters. According to the preliminary diagnosis, doctors believed that he was on the edge of death, and the blood volume of the body had been lost more than half, most likely due to low blood volume or heart failure. After treatment, the soldier has been able to walk out of bed and gradually return to health. In North Korea, the North Korean soldier’s body found many parasites that South Korea could hardly see and learned about the harsh health conditions in North Korea. That shows the cause of parasitic diseases in North Korea, from manure used in farmland, resulting in a lot of Ascaris eggs. As a result, the solider face a serious health condition and he crossed boarder to get a better medical treatment and better life. Because he has no choice.