Addiction is a primary, chronic disease of the brain. It is a condition in which a person engages in use of a substance or in a behaviour for which the rewarding effects provide a compelling incentive to repeatedly pursue the behaviour, despite detrimental consequences. There is scientific evidence that the addictive substances and behaviours share a key neurobiological feature—they intensely activate brain pathways of reward and reinforcement, many of which involve the neurotransmitter dopamine. Studies show that there are genetic factors, making some people more susceptible to addiction. Are you or someone you love suffering from addiction and looking for help?