What are physical signs of addiction ... psychomotor retardation (heroin) or jumpiness (cocaine). Substances users often become so preoccupied with getting and using that they forego eating ...

Repeated cocaine use leads to loss of blood supply to the ... but there may be no other outward signs of the enormous rise in blood pressure. The rise in blood pressure is not permanent, but ...

Hospital casualty units are being overwhelmed by young cocaine users whose habits are putting a strain on their hearts, doctors have warned. One in three young men who turn up at A&E with chest ...