Gambling involves risking something of value (like money) based on the outcome of a game or event that relies on chance. It includes lottery, sports betting and casino games – such as table and card games. It is controlled by laws that limit the ways in which gambling can take place and who can gamble.

Gamblers rely on chance to get a feeling of excitement and achievement that may make them feel happy, but they also know that it is unlikely they will win and that they could lose. This makes it a high-risk, low-reward entertainment choice.

People are often reluctant to admit that they have a gambling problem, especially in cultures where the activity is viewed as acceptable and even a healthy pastime. This can lead to family members having false hopes and expectations about their loved one’s addiction. It can also cause the person to lie to friends and family, leading to strains in relationships and a lack of trust.

Several studies have attempted to quantify the social impacts of gambling by using cost-benefit analysis. However, these methods can be problematic because they fail to account for non-monetary harms and benefits. For example, a loss of self-esteem and a change in one’s quality of life can have long-term effects that may not be quantified by monetary means.

Some research suggests that a person who is struggling with gambling may benefit from seeking treatment and support from others. This can include talking to a GP or NHS service, finding local self-help groups and joining peer support programmes like Gamblers Anonymous.