Hallucination | featured news

U.S. troops are increasingly using an easy-to-get herbal mix called "Spice," which mimics a marijuana high and can bring on hallucinations that last for days. The abuse of the drug has so alarmed military officials that they've launched an aggressive testing program that this year has led to the investigation of more than 1,100 suspected users, according to military figures.

If you've just downed your fifth cup of coffee and you seem to be hearing things that aren't actually there, well, you might want to blame the caffeine in your cup of Joe.