In Animal Farm, how does Napoleon make the living conditions worse and increase the work load?

Napoleon puts near impossible demands on the animals of the farm. At first the animals agree because it's for the good of the farm. They also agree to the heavy work loads because they feel a need to prove themselves to the humans and they don't want to fail in building the windmill because the humans are watching and waiting for the project to fail. Once things begin to get completed around the farm Napoleon finds new reasons that the animals need to be working rather than resting. The pigs are constantly eating and Napoleon is breeding which increases the amount of pigs eating and not working and so production amounts suffer. The animals get less food, but Napoleon, through the use of the ever-convincing Squealer, makes the animals believe that conditions are still better than when Jones was in power and that the commandments have always been in favor of the pigs' behavior. Napoleon's only goals are to make sure the pigs are well taken care of so living conditions worsen for the other animals because no resources are used to make sure they are taken care of. By the time the animals finally realize that they are living terrible lives, they have already given too much power to Napoleon and the pigs to do anything but grin and bear it all.