When humans were able to settle in one place and produce food as opposed to hunting it down or foraging from whatever could be found, the diet of humans changed drastically. Being able to cultivate food afforded people more consistent food sources, but this also began to limit the diversity and seasonality that had been the hunter/gather diet more than 10,000 years. The domestication of animals and the onset of agriculture has been attributed to reduced nutrients in the food we eat. The ability of humans to develop agriculture and stay in one place forced a hierarchical dominance and social structure over high-yielding land. This also began the degradation of soils and opportunity for disease and lower natural immunities because of the reduction of diversity and natural regeneration of organic systems. The land now required maintenance of stationary living.