best to read the study before commenting on it

In the addiction literature, the development of gambling dependence after bariatric surgery is limited. Mitchel et al. reported that 2 cases presented with post-operative gambling addiction in their 3-year screening study in 201 post-op case (5). In our case, the presence of genetic background may be a risk factor for the develop-ment of gambling

2 out of 200 cases is not that common and close to baseline level

Clinically, what causes the urge to have an addiction? Like in your statement, replacing food with gambling. I would assume that these are fundamentally two different reward systems for the brain, or maybe not?