Gambling is the betting or staking of something of value, usually money, on an event with uncertain outcome. Historically, the term gambler has referred to fraudulent gamesters or sharpers who take advantage of others, but today the term is used to describe any person who engages in gambling activities. It is an international business that involves a large number of people, from dealers to odds compilers to marketers and public relations staff. It is also a popular form of online entertainment.

There are many reasons why people may develop problems with gambling. The main factors appear to be a predisposition to thrill-seeking behaviour and an inability to control impulses. Genetic factors may play a role as well. Studies have shown that certain people have underactive brain reward systems, which can contribute to impulsiveness and poor decision-making.

There are a number of ways to get help and support for problem gambling, from self-help to residential treatment and rehab programmes. There is also help for those with family or friends who are affected by a gambling problem. If you have a gambling problem, you should start by setting limits on how much money you can spend and stick to them. You can also limit your access to credit cards, put someone else in charge of your money and close online gambling accounts, to avoid temptation. You can then focus on building a healthy lifestyle and free from the harms of gambling.