Gambling is an activity that involves the exchange of real money or valuable goods for an uncertain outcome, determined at least partly by chance. It can involve betting on a football team or on a scratchcard, or playing casino games like blackjack or poker. Some people may gamble as a way to socialize with friends, or as an outlet for their emotions such as stress or depression. Some people are particularly susceptible to gambling problems, including young people and men (up to 5% of adolescents and adults). People with mood disorders such as bipolar disorder or anxiety may also be more likely to develop a gambling problem. Vulnerability increases with age, and can be caused by a number of factors, such as low incomes, impulsivity, or exposure to gambling advertisements (Nature Human Behaviour, 2018).

In addition to the risks associated with gambling, there are some positive aspects of it. For example, gambling helps local economies by creating jobs and contributing to taxes and royalties. It is also a good form of entertainment, with the excitement and adrenaline produced by casino games helping to stimulate brain activity. It is important to remember that gambling is not a substitute for happiness, and that there are many other ways to have fun.

There are many costs and benefits associated with gambling. These can be categorized at personal, interpersonal and community/society levels. Personal and interpersonal impacts cause effects that affect gamblers themselves, while external impacts influence communities/society and concern others who are not gamblers, such as family members or those who work in casinos.