~OP~
Gambling allows us to risk money, which not only creates risks that contribute to the release of adrenaline, but also gives hope for winning, which in turn contributes to the release of dopamine. It is these two neurotransmitters that allow us to enjoy gambling. They also contribute to the development of gambling addiction in people who, due to their biological and psychological factors, are more prone to risk, impulsive, and have problems with self-control.
Incidentally, stimulation of the brain using these two neurotransmitters is present in many forms of entertainment, whether it be watching horror movies, engaging in extreme sports, consuming alcohol or drugs, etc.