Few people know that Brazil once had a thriving casino industry. In the 20s and 30s of the twentieth century, Rio attracted many with its glittering luxury gambling establishments in the style of the French Riviera. But the industry did not receive the approval of the conservative and religious sections of society, and was eventually banned in 1946 by presidential decree. The new law went into effect on the same day, giving businesses and employees no time to prepare.Resort casinos were included in a proposed tourism law, and in 2020 they are included in a separate bill: on Integrated Resorts, Brazil legalizes poker and considers it an intellectual game. Thus, poker is able to relieve stress and train thinking.In addition, scientists have also managed to prove the effect of online poker on the cognitive function of the brain. The game of poker is largely dependent on variable factors that the player will have to analyze and take into account when considering their further actions. In other words, poker forces a person to learn something new, which is a kind of training for the brain.