Minutemen were a <em>small hand-picked elite force which were required to be highly mobile and able to assemble quickly</em>. Minutemen were selected from militia muster rolls by their commanding officers. Typically 25 years of age or younger, they were chosen for their enthusiasm, reliability, and physical strength.
Making medicine impacted the Gupta Empire because there were less deaths, more ways to cure people of disease. It helped with the birth rates too, since usually back then alot of women died during labor.