Scientists find ‘addictive centre’ in brain

Scientists have pinpointed the source of nicotine addiction — a one-inch wide pleasure centre deep within the brain. The insula, a small island in the cerebral cortex, has been described as a “platform for feelings and emotion”.

Researchers found smokers who suffered damage to this part of the brain were able to quit quickly and easily. They suspected the insula might also be involved in other forms of addictive behaviour that keep people hooked on drugs or excessive eating.

Understanding the link could lead to new strategies for dealing with addiction.