You know the feeling. It sends you to the minimart at midnight for chips, makes you down a pint of ice cream in seconds, destroys your promise to lay off the caffeine and cigarettes. Maybe it's a video game you can't stop playing or a shopping mall that seems to swallow your wallet.
Drug abusers call it jonesing.
But experienced addicts will tell you that you don't really know what jonesing is all about until you've tried crack. Smoked cocaine is probably the most addictive substance used by humankind. And once you're hooked, you're cooked. Instead there are rehab centers, Narcotics Anonymous meetings, a shrink in the afternoon, group therapy at night. And the success rates of these programs are sobering in themselves.