Keeping yourself busy is one of the best ways for an addict to distract themselves from gambling. They can find a hobby that they enjoy, or do work, or do other activities that keep their attention away from gambling. Because the problem that gamblers often face is that the urge to gamble arises when they are not doing anything
You're right being busy with something can actually keep you from gambling abit but not necessarily on a very solid ground base, cause at this point little things can intice the gambler to keep gambling but I think having indulge oneself to another hobby could also remedy the gambling addiction rate of the person, cause instead of gambling they find themselves doing another thing that brings fun to them.