Gambling is an activity in which people place something of value (usually money) on an event whose outcome is determined by chance. It can include activities like betting on lotteries, casino games, sports events, scratchcards and online games. People gamble for a variety of reasons, but it is often because they want to win additional money or material items. Regardless of the reason, gambling is an addictive activity that can cause significant problems in the lives of those who are addicted. It can affect their self-esteem, relationships and work performance and can harm their physical and mental health. It can also have negative impacts on the families and communities of those who are addicted to gambling.

Research into gambling has shown that the activity causes changes in the brain. The release of dopamine during gambling occurs in brain areas that are similar to those activated when taking drugs. It has also been found that repeated exposure to gambling and uncertainty produces lasting changes in the brain.

One of the biggest challenges when dealing with a gambling problem is getting the person who is addicted to stop. This is particularly hard if they have lost a substantial amount of money and are in financial crisis. The good news is that there are a number of things you can do to help. These include: