How does health play a critical role in human capital formation?

: Human capital is the set of skill and productive knowledge embodied in the population. The population becomes human capital when there is an investment made in the form of education, training and medical care.

Health plays a critical role in human capital formation as a person could work efficiently only when he is healthy with a healthy mind. For this reason, the government of the country ensures that the majority of the population are healthy and illness free.