Gambling is an activity where people wager something of value on an event that has a random outcome, such as a football match or buying a scratchcard. It can involve real money, as well as other valuable items such as collectible card games or toys. It is also possible to gamble using virtual money, such as online poker or slot machines.

Gambling is a dangerous behaviour that can have harmful short and long term effects on the gambler, their family, friends, and the community. It can lead to depression, poor relationships, financial problems and legal issues. It can also contribute to or be made worse by underlying mood disorders such as anxiety and stress. It is important for people to get help with gambling issues, and there are many organisations that offer support, advice and counselling.

A person who has a gambling problem may be compulsive, meaning they have a hard time controlling their urges to gamble. They may gamble even when they know that the odds are against them or that they can’t afford to lose. They might hide their gambling activities or lie about how much time and money they’re spending on them. They might be secretive or aggressive towards others when they’re gambling.

Some researchers have suggested that pathological gambling should be classified as an addiction. They argue that it shares characteristics with other addictive behaviours, such as substance abuse and compulsive shopping. However, other experts have pointed out that there is no evidence to support this view. They suggest that the differences between pathological gambling and other addictive behaviours are caused by different paradigms or world views and not because of shared characteristics.

While there are some skills that can improve a person’s chances of winning a game of chance, such as knowing about playing strategies in card games or the histories of horses and jockeys in horse races, these skills do not alter the basic mechanics of the game or increase the odds of winning by more than a small amount. Moreover, there is no evidence that gambling affects the brain in a way that is comparable to the brain changes seen in substance use and gambling disorders.

If you’re worried about a friend or relative’s gambling, talk to them about it. Try to find out more about gambling and how it works, so you can help them understand what is happening. Suggest that they seek treatment for their gambling disorder, and consider joining a peer support group such as Gamblers Anonymous. Getting support from others who have gone through the same thing will show them that they are not alone in their struggle. You can also help them by ensuring that their finances are in order and limiting access to credit cards and other electronic payment systems. You can also encourage them to work on underlying mood problems such as anxiety and depression, which can often trigger gambling addictions or make them worse.