Cocaine’s Effects on the Brain

Neato. 

Brain scans have revealed a possible biological basis for cocaine addiction which may explain why some get hooked, while others can use the drug socially.

The scans show cocaine alters parts of the brain controlling behaviour and appropriate decision-making.

In effect, the drug messes with what is colloquially known as willpower - with some maybe more vulnerable than others.

[...]

The latest study suggests that it is not simply these emotions that are affected by cocaine, but the way the brain deals with them, and keeps them in check by controlling a person’s actions.