People used to be healthy when they didn't have enough to eat.

The main problem is the system. In the past, the socialist pot rice was handed over to the masses to grow food, and even the farmers themselves could not get enough to eat. The primitive accumulation of socialist countries depends on the cruel oppression and exploitation of farmers. China also used the Soviet model for reference to complete the primitive accumulation. The food grown by farmers is forcibly handed over to the people in exchange for foreign exchange, making atomic bombs as murder weapons and starving people, just like North Korea now. Therefore, whether people can eat or not depends on how the ruling class rules. Totalitarian countries have always been like this, and the system is killing people! Now that the amount of grain is sufficient, the key is that the yield per mu of crops has been greatly improved. There are five important factors at work: the enthusiasm of farmers (contract system of joint production); Promotion of improved varieties (hybrid rice, etc.) ); Water conservancy facilities (some arid areas have obvious effects, while others have not improved much); The use of agricultural machinery; The extensive use of fertilizers and pesticides.