A research psychologist at the National Institute of Mental Health was convinced he could prove his theory from a cage full of mice. His name? Dr. John Calhoun. His theory? Overcrowded conditions take a terrible toll on humanity. Dr. Calhoun built a nine-foot square cage for selected mice. He observed them closely as their population grew. He started with eight mice. The cage was designed to contain comfortably a population of 160. He allowed the mice to grow, however, to a population of 2200. They were not deprived of any of life's necessities except privacy no time or space to be all alone. Food, water, and other resources were always clean and in abundance. A pleasant temperature was maintained. No disease was present. All mortality factors (except aging) were eliminated. The cage, exce…