Poverty officially leads to a decline in intelligence, a long-term study using various tests and an MRI has shown. Due to the lack of constant money, the human brain shrinks, cognitive abilities decrease and the body ages faster. Those below the poverty line performed the worst on tests of memory and processing speed. At the same time, men's mental abilities and health suffer mainly from lack of money. from ed. "When people know a lot, it's hard to govern." Lao Tzu, "When people earn a lot, it is even more difficult to manage it." Arangel scientists.