Yes, of course. There is a mental disorder called "Ludomania" - it is a gambling addiction. Any addiction is bad and any addiction needs to be treated if the person wants it. I have seen in my life many people who are addicted to gambling, these people are unhappy, they lose all the money they have, borrow from friends and also lose, and at the same time they cannot stop. People need to treat poker as a pleasure or as a job and then there will be no problems with it.