A form of gambling involves risking something of value (usually money) on an uncertain event with the hope of winning a larger prize. It is most commonly a game of chance, but can also be based on skill. Examples include poker, roulette, horse races, sports events, lottery tickets, slot machines, instant scratch cards, and bingo.

While for many people gambling is just an enjoyable pastime, it can become problematic for some. It can negatively impact their mental and physical health, relationships, performance at work or study, and even get them into legal trouble or homelessness. It can also cause financial stress and strain on the family, so it’s important to seek help if you think you or someone you know is struggling with gambling.

The exact definition of gambling varies from country to country, but it typically involves betting something of value on an uncertain outcome, such as the result of a game or a contest. It excludes business transactions based on contracts or on the law of contract, such as buying insurance, investing in stocks or securities, or purchasing life or health insurance.

There are a number of ways to seek treatment for gambling problems, including cognitive behavioural therapy. This looks at beliefs around gambling, such as the belief that you are more likely to win than you are, or that certain rituals can bring luck, and changes how you feel and behave when you want to gamble.