Slot machines https://kasynoonlineautomaty.pl/gry-jackpot/ and card games excite the human nervous system and molecular physiology. As a result, the body produces happiness and stress hormones. A cocktail of dopamine, serotonin and adrenaline enters the bloodstream, activating brain activity accordingly. Playing a game gives a person a mild feeling of stress, excitement and joy. Similar feelings can be experienced during lovemaking, active sports or, oddly enough, during an argument.