A great advantage in poker comes from the ability to control oneself and not get angry either because of the cunning of opponents, or, more importantly, because of bad cards. Poker knows no sympathy. Always keep calm. Overwork. Playing in a state of fatigue is one of the best ways to go on tilt. In a state of fatigue, decision-making efficiency is significantly reduced, which leads to loss of concentration and errors. If you constantly yawn, your eyes close, and you fall asleep right at the table, then it's time to stop!