GAMBLING is extremely popular, with lottery tickets, casinos, slot machines, bingo halls and other forms of the activity generating revenues of more than £80 billion each year in the UK alone. For most people, gambling is nothing more than an entertaining way to pass the time. But for some, it becomes a compulsive and pathological habit - they spend increasing amounts of time gambling, because tolerance builds up quickly, and experience withdrawal symptoms when they aren't gambling.
The terms "tolerance" and "withdrawal" are normally associated with drug addiction, and indeed pathological…
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