During the 70s there was a movie named logan's run. This movie is about a futuristic world, human being are required to die when they reach 30yrs old.
Now i know how they do it. By putting poisonous additives (certified safe) which are allowed by the authority, into the food, so human beings life span are shorten. Also by giving fake food
http://rt.com/usa/news/us-poverty-kids-health-687/ - Published Fri, Jan 11, 2013