Gambling is a form of risk-taking in which an individual wagers something of value on the outcome of a random event, such as dice, a card game or a horse race, with the goal of winning something else of value. It is often accompanied by an element of skill, such as knowing the rules and using a strategy. It is a popular pastime in many societies and contributes to the economy of countries.

People who engage in gambling tend to feel happier during and after their activities than those who do not. This may be because the activity allows them to socialize with others. Moreover, it provides them with an opportunity to exercise their brain and pick up skills as they learn to study patterns and numbers.

However, this happiness is not permanent and can quickly fade. Some people become addicted to the activity and have a difficult time separating themselves from it. There are several factors that can lead to addiction, including genetic and psychological predispositions.

Another reason for gambling addiction is that it can provide an outlet for negative emotions, such as depression or stress. In fact, a recent study found that people with mood disorders are more likely to be compulsive gamblers than those without them.

People who are addicted to gambling can also exhibit behavioural symptoms, such as secrecy and lying. They can even begin to treat their gambling as an illness, seeking treatment and support from organisations like Gamblers Anonymous.