Gambling is an activity that gives the human being a lot of fun, entertainment, and adrenaline rushes. An adrenaline and dopamine rush is something that a human can get addicted to. That is why a lot of humans are addicted to drugs. Drugs and gambling or two things that have a similar effect on the human brain. That is why the human brain gets addicted to gambling activities. When a person is addicted to gambling, there is not much else you can think about. Most people who are addicted to gambling activities are supposed to check themselves into rehabilitation centres to get better.